Improve scan-view report bug (submitted) interface.

Give more meaningful error messages / fail gracefully on bad form
input or SMTP errors.

Use button for Report Bug link (where available).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56420 91177308-0d34-0410-b5e6-96231b3b80d8
3 files changed