Use RunShellWithReturnCode() instead RunShell() to allow uploads of  empty base files with git (issue 11718).
Use RunShellWithReturnCode() instead RunShell() to allow uploads of 
empty base files with git (issue 11718).


git-svn-id: 095a516e186c72f46b708383d0d3f28c2432e8a1@390 e30e9e8f-1b4c-0410-881d-6f13584adfe0

imirkin/rietveld,imirkin/rietveld,termie/rietveld-mirror,termie/rietveld-mirror