check on yarn production incompatibility with npm
check on yarn production incompatibility with npm

check npm incompatibility

margins around warning

combined if

pkumar-appd/nodejs-buildpack,heroku/heroku-buildpack-nodejs,oocl-ncc-itm/nodejs-buildpack,ks2software/nodejs-buildpack,apiaryio/heroku-buildpack-nodejs-grunt,Scalingo/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack,ks2software/nodejs-buildpack,pkumar-appd/nodejs-buildpack,Scalingo/nodejs-buildpack,kauffecup/nodejs-buildpack,cloudfoundry/nodejs-buildpack,ks2software/nodejs-buildpack,heroku/heroku-buildpack-nodejs,heroku/heroku-buildpack-nodejs,totapari/heroku-buildpack-nodejs,Hylozoic/heroku-buildpack-nodejs-babel,ks2software/nodejs-buildpack,pkumar-appd/nodejs-buildpack,cloudfoundry/nodejs-buildpack,heroku/heroku-buildpack-nodejs,oocl-ncc-itm/nodejs-buildpack,nikhil-bhandari/ng-cli-buildpack,kauffecup/nodejs-buildpack,Scalingo/nodejs-buildpack,caiorogerio/heroku-buildpack-grunt,Scalingo/nodejs-buildpack,caiorogerio/heroku-buildpack-grunt,Scalingo/nodejs-buildpack,cloudfoundry/nodejs-buildpack,oocl-ncc-itm/nodejs-buildpack,kauffecup/nodejs-buildpack,caiorogerio/heroku-buildpack-grunt,ks2software/nodejs-buildpack,cloudfoundry/nodejs-buildpack,heroku/heroku-buildpack-nodejs