Ensure internal changes are prefixed with '*'.
Ensure internal changes are prefixed with '*'.

BUG=none
TEST=Run with internal changes, ensure prefix exists. Unit tests.

Change-Id: Idad26a93be5823e155dfcb398a4be3269c7dc8b4
Reviewed-on: https://gerrit.chromium.org/gerrit/59951
Reviewed-by: Mike Frysinger <8f3f75c74bd5184edcfa6534cab3c13a00a2f794@chromium.org>
Commit-Queue: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>
Tested-by: David James <f231dc574bbeb62604660cbc162d1b8642a0a3af@chromium.org>

bpsinc-native/src_third_party_chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite,bpsinc-native/src_third_party_chromite,chadversary/chromiumos.chromite