It is never, ever, appropriate to use the same exact Subject: line
text for two different changes.
Someone looking at "git shortlog" has no way to know what is different
between the two changes.
You must put care and time into constructing Subject: lines because
this text is critical for data mi
In a few cases the err-variable is not set to a negative error code if a
function call fails and thus 0 is returned instead.
It may be better to set err to the appropriate negative error code
before returning.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188841
Reported-by: Pan Bian
Sig
