Use "warning" prefix to allow colorization of remote output

Since commit bf1a11f "sideband: highlight keywords in remote sideband
output" [1] in git, the "warning" keyword will be highlighted in the
remote output when color.remote is enabled in the git config.

Change "(W)" to "warning" to make use of this feature.

Also make the messages a bit less verbose by removing "commit".

[1] https://github.com/git/git/commit/bf1a11f0a100b080a25233980c14b5ae8f3a7d2d

Change-Id: I9d337af70fc12ddea356d361da23ce8f0bfa85a2
1 file changed
tree: 578f20f7e6723815c0beadc3a1ae9417b685658e
  1. src/
  2. .gitignore
  3. BUILD