checkpatch: allow commit descriptions on separate line from commit id

The general form for commit id and description is

  'Commit <12+hexdigits> ("commit description/subject line")'

but commit logs often have relatively long commit ids and the commit
description emds on the next line like:

  Some explanation as to why commit <12+hexdigits>
  ("commit foo description/subject line") is improved.

Allow this form.

Signed-off-by: Joe Perches <>
Suggested-by: Joe Lawrence <>
Tested-by: Joe Lawrence <>
Suggested-by: Geert Uytterhoeven <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
1 file changed