Filter more stuff from shim
Filter more stuff from shim

Change-Id: I23ee03198acb7a792310799d7a72f8a19ca5445b

Review URL: http://codereview.chromium.org/3331021

bcwaldon/coreos-scripts,marineam/coreos-scripts,trnubo/scripts,smilart/scripts,crawford/scripts,smilart/scripts,zhang0137/scripts,fivethreeo/scripts,crawford/scripts,gtank/scripts,nicescale/scripts,gtank/scripts,andrejro/coreos--scripts,sigma/coreos-scripts,nicescale/scripts,vmware/coreos-scripts,bcwaldon/coreos-scripts,endocode/scripts,mjg59/scripts,crawford/scripts,mjg59/scripts,nicescale/scripts,sigma/coreos-scripts,coreos/scripts,endocode/scripts,BugRoger/scripts,mischief/scripts,smilart/scripts,zhang0137/scripts,BugRoger/scripts,fivethreeo/scripts,glevand/coreos--scripts,andrejro/coreos--scripts,gtank/scripts,bcwaldon/coreos-scripts,mischief/scripts,vmware/coreos-scripts,trnubo/scripts,zhang0137/scripts,mischief/scripts,marineam/coreos-scripts,mjg59/scripts,glevand/coreos--scripts,marineam/coreos-scripts,BugRoger/scripts,andrejro/coreos--scripts,fivethreeo/scripts,sigma/coreos-scripts,vmware/coreos-scripts,endocode/scripts,trnubo/scripts,coreos/scripts