test-check-commit-hg: clarify misleading "commit message rules" error The test case doesn't only check the commit message, but also the patch, which can result in confusing output like + Revision df6f06d17100 does not comply to commit message rules + ------------------------------------------------------ + 32: adds double empty line + + even when there are no double blank lines in the commit message. Drop the "commit message" part to make it less confusing.