fix leaking GIT_DIR
fix leaking GIT_DIR

jrhite/heroku-buildpack-kwotefu,ActiveState/cloudfoundry-buildpack-meteorite,marnold6/nodejs_buildpack,oortcloud/heroku-buildpack-meteorite,themgt/buildpack-nodejs-grunt-bourbon,ahamidi/heroku-buildpack-node-couchbase,evac/habbit-buildpack,actuosus/heroku-buildpack-adname,cloudControl/buildpack-nodejs,karthikeyabhaghavatula/nodejs_buildpack,shaneseaton/heroku-buildpack-meteorite,mpirik/heroku-buildpack-nodejs-grunt-compass,The18thWarrior/ethereum-buildpack,201-created/heroku-buildpack-nodejs,tweettypography/heroku-buildpack-nodejs,jonmc12/heroku-buildpack-nodejs,uonline/heroku-buildpack,twilson63/custom-buildpack-nodejs-cups,caiorogerio/heroku-buildpack-grunt,dshafer/heroku-buildpack-nodejs,yaditya/heroku-buildpack-nodejs-gulp-haml-sass-compass,Azema/DeployGitNodejs,glawson6/heroku-buildpack-nodejs,ankparik/nodejs-buildpack,shaneseaton/heroku-buildpack-meteorite,GoeGaming/heroku-buildpack-nodejs,tobobo/heroku-buildpack-ember,dickeyxxx/heroku-buildpack-nodejs,Azema/DeployGitNodejs,djng/heroku-buildpack-webapp-client,Crotery/heroku-buildpack-nodejs-grunt-compass,Stylitics/heroku-buildpack-nodejs,bionikspoon/annotation-tool-heroku-buildpack-nodejs,NSWIDER/nodejs-oracle-buildpack,hpcloud/cloudfoundry-buildpack-meteorite,ActiveState/cloudfoundry-buildpack-meteorite,marnold6/nodejs_buildpack,aergonaut/heroku-buildpack-coffeescript,sibeliusseraphini/heroku-buildpack-nodejs-bower-grunt,guilleva/heroku-buildpack-nodejs,heroku/heroku-buildpack-nodejs,crdschurch/heroku-buildpack-gulp,therewasaguy/heroku-buildpack-nodejs-grunt-compass,simonjjones/snowedjs_buildpack,glebm/heroku-buildpack-nodejs-grunt-sass,BetterWorks/heroku-buildpack-pgbouncer,newyorkdata/heroku-buildpack-nodejs-gulp,gmaclennan/dokku-superstatic,ericf89/heroku-buildpack-nodejs-gulp-haml-sass-compass,roder/nodejs-buildpack,tlvince/heroku-buildpack-nodejs,olragon/heroku-buildpack-nodejs-sqlmap,evac/habbit-buildpack,rtomlinson/cf-node-buildpack,comlanio/nodejs-buildpack,devakone/heroku-buildpack-nodejs-grunt-compass,AndyGriffiths/heroku-buildpack-meteorite,ctrlaltdel121/heroku-buildpack-nodejs,Scalingo/nodejs-buildpack,ShakrMedia/heroku-buildpack-nodejs,karthikeyabhaghavatula/nodejs_buildpack,Amandeepsinghghai/heroku-buildpack-nodejs,crdschurch/heroku-buildpack-gulp,chrisfelix82/heruku-buildpack-ffmpeg-nodejs,shuber/heroku-buildpack-nodejs,rainum/heroku-buildpack-nodejs-grunt-compass,201-created/heroku-buildpack-nodejs,jonmc12/heroku-buildpack-nodejs,olragon/heroku-buildpack-nodejs-sqlmap,ArthurHlt/nodejs-buildpack,alexlafroscia/giteasy-buildpack,bagelswitch/buildpack-nodejs,subhog/heroku-buildpack-meteorite-phantomjs,themgt/buildpack-nodejs-grunt-bourbon,twilson63/custom-buildpack-nodejs-cloud-foundry,TheHealthPros/heroku-buildpack-nodejs,TechRelease/cf-buildpack-nodejs,apiaryio/heroku-buildpack-nodejs-grunt,shinji62/nodejs-buildpack,simonjjones/snowedjs_buildpack,ankparik/nodejs-buildpack,ks2software/nodejs-buildpack,AdmanStrong/heroku-buildpack-nodejs-grunt-compass,cesarandreu/heroku-buildpack-nodejs,olragon/heroku-buildpack-node-plus,artch/heroku-buildpack-nodejs-bower-gulp-grunt-compass,timdp/heroku-buildpack-nodejs-gulp,Ensequence/heroku-buildpack-yo-angular,JProgrammer/heroku-buildpack-nodejs,cloudfoundry-community/cloudfoundry-buildpack-meteorite,jrhite/heroku-buildpack-skippydoo,heroku/heroku-buildpack-nodejs,chloeandisabel/heroku-buildpack-nodejs-gulp,davious/heroku-buildpack-nodejs-grunt-compass,pogoapp/buildpack-meteorite,tnguyen14/heroku-buildpack-meteorite,themgt/buildpack-nodejs-grunt-bourbon,effinggames/heroku-buildpack-nodejs-bower-gulp,nemesiscodex/heroku-buildpack-nodejs,ind1go/bluemix-buildpack-meteor,dhcole/nodejs-buildpack,atmos/heroku-buildpack-nodejs,gregburek/heroku-buildpack-postgresql,tomfa/heroku-buildpack-nodejs,Scalingo/nodejs-buildpack,meenie/heroku-buildpack-nodejs-grunt-bower,objectpartners/heroku-buildpack-nodejs-grunt,elasticio/heroku-buildpack-nodejs-grunt-old,diegobent/heroku-buildpack-nodejs,cloudfoundry-community/cloudfoundry-buildpack-meteorite,linemanjs/heroku-buildpack-lineman,meenie/heroku-buildpack-nodejs-grunt-bower,CloudSide/heroku-buildpack-nodejs,tfynes-pivotal/nodejs-buildpack,pkumar-appd/nodejs-buildpack,djng/heroku-buildpack-webapp-client,pogoapp/buildpack-meteorite,comlanio/nodejs-buildpack,tnguyen14/heroku-buildpack-meteorite,dvdwasibi/heroku-buildpack-nodejs-grunt-sass,jthomas/nodejs-v4-buildpack,ks2software/nodejs-buildpack,oneibmcloud/bluemix-buildpack-meteor,pkumar-appd/nodejs-buildpack,ollisal/heroku-buildpack-nodejs,aquicore/heroku-buildpack-nodejs-gulp,pogoapp/buildpack-nodejs-kiwi,kirs/heroku-buildpack-nodejs,cassinius/heroku-buildpack-meteorite,nikhil-bhandari/ng-cli-buildpack,roder/nodejs-buildpack,kudos/heroku-buildpack-nodejs-jspm,bagelswitch/buildpack-nodejs,andrewbranch/heroku-buildpack-nodejs-ember,The18thWarrior/ethereum-buildpack,fedosov/heroku-buildpack-nodejs-gulp-bower,crito/interconnect-buildpack,cloudfoundry/nodejs-buildpack,roder/nodejs-buildpack,ankparik/nodejs-buildpack,crito/interconnect-buildpack,bpartridge83/heroku-buildpack-nodejs-grunt-gulp-bower,dhcole/nodejs-buildpack,lemondemon/heroku-buildpack-nodejs-grunt-compass,AnyPresence/heroku-buildpack-nodejs,cloudfoundry/nodejs-buildpack,cassinius/heroku-buildpack-meteorite,danielgranat/heroku-buildpack-nodejs-grunt,hpcloud/nodejs-buildpack,WeConnect/heroku-buildpack-nodejs-grunt-compass,edgahan/heroku-buildpack-nodejs,hpcloud/nodejs-buildpack,tastemade/heroku-buildpack-nodejs-grunt-compass,aarongray/heroku-buildpack-nodejs-gulp-bower,digitalfibr/heroku-buildpack-nodejs,tfynes-pivotal/nodejs-buildpack,JaapRood/heroku-buildpack-yeoman,pivotal-topher-bullock/lamby-js-buildpack,ahamidi/heroku-buildpack-node-couchbase,CandisIO/heroku-buildpack-node,StitchedCode/heroku-buildpack-nodejs-bower-gulp,elasticio/elasticio-buildpack-nodejs-original,bionikspoon/heroku-buildpack-nodejs,MarkusMattinen/heroku-buildpack-nodejs,mergermarket/heroku-buildpack-nodejs,actuosus/heroku-buildpack-adname,gvelo/heroku-buildpack-nodejs-grunt,Scratch-it/heroku-buildpack-nodejs-grunt-compass,kyleturco/heroku-buildpack-nodejs-gulp,fcruxen/heroku-buildpack-nodejs,neoskop/heroku-buildpack-nodejs-grunt-compass,Dsyko/heroku-buildpack-meteorite,kevinSuttle/heroku-buildpack-nodejs,Jonatasmz/heroku-buildpack-nodejs,triceam/nodejs-buildpack,mrc535s/wkhtmltopdfbp,jthomas/nodejs-v4-buildpack,davegwilt/heroku-buildpack-stunnel,Yobota/heroku-buildpack-pgbouncer,REscour/heroku-buildpack-nodejs-gulp-bower-sass,mmgm/nodejs-buildpack,appstack/heroku-buildpack-nodejs-gulp,tamdao/heroku-buildpack-nodejs,aergonaut/heroku-buildpack-coffeescript,jamescallmebrent/heroku-buildpack-nodejs,TJM/heroku-buildpack-nodejs,thoughtbot/heroku-buildpack-nodejs,tlvince/heroku-buildpack-nodejs,vjm/heroku-buildpack-nodejs-grunt-compass,robgraeber/heroku-buildpack-nodejs-gulp,willow-codes/heroku-buildpack-nodejs-bower-gulp-grunt-compass,robgraeber/heroku-buildpack-nodejs,raghuveerthummeti/nodejs-buildpack,adrianhuna/heroku-buildpack-nodejs-gulp-bower,ArthurHlt/nodejs-buildpack,piglovesyou/heroku-buildpack-nodejs,greenapes/heroku-buildpack-nodejs-bower-gulp-grunt-compass,Scalingo/nodejs-buildpack,kauffecup/nodejs-buildpack,mrc535s/wkhtmltopdfbp,Vincit/heroku-buildpack-nodejs,stephanmelzer/heroku-buildpack-nodejs-grunt-compass,arunoda/heroku-qrencode-buildpack,shinji62/nodejs-buildpack,leourbina/heroku-buildpack-nodejs-gulp-sass,goodeggs/heroku-buildpack-nodejs,circuithub/heroku-buildpack-nodejs-grunt,cjsaylor/heroku-buildpack-gcb,simonjjones/snowedjs_buildpack,cnbin/heroku-buildpack-nodejs-grunt,jasonswett/heroku-buildpack-nodejs-gulp,rmisio/heroku-buildpack-nodejs-grunt-compass-bower,karthikeyabhaghavatula/nodejs_buildpack,ks2software/nodejs-buildpack,subhog/heroku-buildpack-meteorite-phantomjs,gabegorelick/fracas-buildpack,ks2software/nodejs-buildpack,JaapRood/heroku-buildpack-yeoman,pivotal-topher-bullock/lamby-js-buildpack,imothee/heroku-buildpack-nodejs-grunt,bpartridge83/heroku-buildpack-nodejs-grunt-gulp-bower,celerityweb/heroku-buildpack-nodejs-gulp,mikeyoon/heroku-buildpack-nodejs,NSWIDER/nodejs-oracle-buildpack,Scalingo/nodejs-buildpack,heroku/heroku-buildpack-nodejs,pkumar-appd/nodejs-buildpack,pixel2/heroku-buildpack-meteorite,Gaelan/buildpack-meteor-0.9,robgraeber/heroku-buildpack-nodejs-bower-gulp,ks2software/nodejs-buildpack,crawsible/nodejs-buildpack,soswow/heroku-buildpack-nodejs-grunt-compass,heroku/heroku-buildpack-nodejs,mick/heroku-buildpack-nodejs-zip,kauffecup/nodejs-buildpack,mbuchetics/heroku-buildpack-nodejs-grunt,Ferrari/heroku-buildpack-nodejs,yookoala/heroku-buildpack-nodejs,Grahahax/nodejs-buildpack,hpcloud/cloudfoundry-buildpack-meteorite,gfguthrie/heroku-buildpack-bower-grunt,TechRelease/cf-buildpack-nodejs,triceam/nodejs-buildpack,sailrish/heroku-buildpack-coffee,mmgm/nodejs-buildpack,elasticio/heroku-buildpack-nodejs-grunt,crito/interconnect-buildpack,findtopher/heroku-buildpack-meteorite,jasonswett/heroku-buildpack-nodejs-grunt-compass,mhussainm/bluemix-buildpack-meteor,jasonswett/fv-heroku-buildpack-nodejs-gulp-bower,tjmehta/heroku-buildpack-nodejs-grunt-compass,olragon/heroku-buildpack-nodejs-sqlmap,tfynes-pivotal/nodejs-buildpack,heroku/heroku-buildpack-pgbouncer,circuithub/heroku-buildpack-nodejs-grunt,realtymaps/heroku-buildpack-assets,aheissenberger/cloudcontrol-buildpack-meteor,Shyp/heroku-buildpack-pgbouncer,JProgrammer/heroku-buildpack-nodejs,mrc535s/wkhtmltopdfbp,Grahahax/nodejs-buildpack,carouselapps/heroku-buildpack-nodejs,cloudfoundry/nodejs-buildpack,circuithub/heroku-buildpack-nodejs-new,mushdigital20/heroku-buildpack-coffeescript,antecursor/heroku-buildpack-nodejs-gulp,circuithub/heroku-buildpack-nodejs-new,nikhil-bhandari/heroku-buildpack-nodejs-grunt-compass,shoetomydixi/node_sigma_zapp_buildpack,heroku/heroku-buildpack-nodejs,totapari/heroku-buildpack-nodejs,msuonp/heroku-buildpack-nodejs,appstack/heroku-buildpack-nodejs-gulp,comlanio/nodejs-buildpack,atmos/heroku-buildpack-nodejs,justinwalsh/heroku-buildpack-nodejs,ks2software/nodejs-buildpack,bagelswitch/buildpack-nodejs,rmoorman/heroku-buildpack-pgbouncer,denisvlr/heroku-buildpack-nodejs-grunt-compass,brunoleite/heroku-buildpack-nodejs-jspm,ahamidi/heroku-buildpack-node-couchbase,mick/heroku-buildpack-nodejs-zip,tobobo/heroku-buildpack-ember,glebm/heroku-buildpack-nodejs-grunt-sass,JaapRood/heroku-buildpack-yeoman,meenie/heroku-buildpack-nodejs-grunt-bower,krry/heroku-buildpack-nodejs-gulp-bower,actuosus/heroku-buildpack-adname,pivotal-topher-bullock/lamby-js-buildpack,shedd/heroku-buildpack-nodejs,Scalingo/nodejs-buildpack,crawsible/nodejs-buildpack,ks2software/nodejs-buildpack,djng/heroku-buildpack-webapp-client,rtomlinson/cf-node-buildpack,tastemade/heroku-buildpack-nodejs-gulp,gabegorelick/fracas-buildpack,Grahahax/nodejs-buildpack,nknj/heroku-buildpack-yo-angular,stevenrigby/heroku-buildpack-nodejs,Vestride/heroku-buildpack-nodejs-bower-depth,caiorogerio/heroku-buildpack-grunt,realtymaps/heroku-buildpack-pgbouncer,caiorogerio/heroku-buildpack-grunt,cassinius/heroku-buildpack-meteorite,jamescallmebrent/heroku-buildpack-nodejs,dam4222/heroku-buildpack-nodejs-gulp,tastemade/heroku-buildpack-nodejs-grunt-compass,shinji62/nodejs-buildpack,findtopher/heroku-buildpack-meteorite,greenapes/heroku-buildpack-nodejs-bower-gulp-grunt-compass,JProgrammer/heroku-buildpack-nodejs,Jell-E/heroku-buildpack-nodejs-rust,ollisal/heroku-buildpack-nodejs,JasonZigelbaum/heroku-buildpack-nodejs,olragon/heroku-buildpack-node-plus,partus/buildpack-meteorite,oocl-ncc-itm/nodejs-buildpack,kauffecup/nodejs-buildpack,musicglue/heroku-buildpack-postgresql,cloudfoundry/nodejs-buildpack,timshadel/heroku-buildpack-stunnel,marnold6/nodejs_buildpack,leourbina/heroku-buildpack-nodejs-gulp-sass,davidmfoley/heroku-buildpack-nodejs-gulp-bower,cinghiale/heroku-buildpack-nodejs-grunt-compass,dhcole/nodejs-buildpack,gmaclennan/dokku-superstatic,mmgm/nodejs-buildpack,jthomas/nodejs-v4-buildpack,ShreyasWao/heroku-buildpack-nodejs,crawsible/nodejs-buildpack,gtothesquare/heroku-buildpack-nodejs-grunt,circuithub/rogerwilco-buildpack,fbaraujo/heroku-buildpack-yo-angular,mrmowgli/heroku-buildpack-meteorite,raghuveerthummeti/nodejs-buildpack,teodor-pripoae/heroku-buildpack-nodejs-gulp,Hylozoic/heroku-buildpack-nodejs-babel,ajspera/heroku-buildpack-nodejs-grunt-compass,oocl-ncc-itm/nodejs-buildpack,sky-uk/heroku-buildpack-nodejs-grunt-compass,circuithub/heroku-buildpack-nodejs-grunt,arunoda/heroku-qrencode-buildpack,stephanmelzer/heroku-buildpack-nodejs-grunt-compass,pogoapp/buildpack-nodejs-kiwi,aihaddad/heroku-buildpack-nodejs-gulp,jasonswett/heroku-buildpack-nodejs-gulp-bower,kfiroo/heroku-buildpack-nodejs-grunt-compass,davidmfoley/heroku-buildpack-nodejs-gulp-bower,ArthurHlt/nodejs-buildpack,kevinSuttle/heroku-buildpack-nodejs,circuithub/rogerwilco-buildpack,agriffis/heroku-buildpack-pgbouncer,KamranAsif/heroku-buildpack-nodejs-bower-grunt,cheeyeo/heroku-buildpack-nodejs,NSWIDER/nodejs-oracle-buildpack,tinganho/heroku-buildpack,vladikoff/heroku-buildpack-fxa,hpcloud/nodejs-buildpack,atmos/heroku-buildpack-nodejs,stevenrigby/heroku-buildpack-nodejs,Stibbons/heroku-buildpack-nodejs,soswow/heroku-buildpack-nodejs-grunt-compass,rtomlinson/cf-node-buildpack,intuinno/bluemix-buildpack-meteor,sailrish/heroku-buildpack-nodejs,oocl-ncc-itm/nodejs-buildpack,tlvince/heroku-buildpack-nodejs,elais/heroku-buildpack-nodejs,evac/habbit-buildpack,salesforceidentity/heroku-buildpack-nodejs-jdk8,raghuveerthummeti/nodejs-buildpack,bellhops/heroku-buildpack-nodejs,triceam/nodejs-buildpack