Bug fixes for bot update patch display
Bug fixes for bot update patch display

On patch failure, it should raise after outputting step text data.

BUG=384024
TBR=iannucci,agable

Review URL: https://codereview.chromium.org/336863003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@277059 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build