Job 93709  failed with missing committer sign-off. Ayan has their committer string set to "Ayan kumar halder firstname.lastname@example.org", and the Signed-off-by line on the commit was "Signed-off-by: Ayan Kumar Halder email@example.com". So grep did what we asked it to do and did not find the SoB since the case was incorrect.
This patch changes to case-insensitive search and while we're at it, trims excess whitespace from both the commit body and the committer/author name.
Finally, I've improved the error message so it's hopefully more clear why things fail in the future.
Signed-off-by: Sean Paul firstname.lastname@example.org