[PATCH v2] git-am: indicate where a failed patch is to be found.

If git am fails to apply something, the end user may need
to know where to find the patch.  This is normally known for
a single patch, but if the user is processing a mbox with
many patches, they may not have a single broken out patch
handy.  So, provide a helpful hint as to where they can
find the patch to do some sort of manual fixup, if we
are processing a mbox with more than one patch in it.

Signed-off-by: Paul Gortmaker <redacted>
---
[v2: drop text suggesting what to do with failed patch; only
 emit the help text if we are processing mbox with multi patches]

 git-am.sh |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/git-am.sh b/git-am.sh
index f8b7a0c..20b3b73 100755
--- a/git-am.sh
+++ b/git-am.sh

@@ -855,6 +855,11 @@ did you forget to use 'git add'?"
 	if test $apply_status != 0
 	then
 		eval_gettextln 'Patch failed at $msgnum $FIRSTLINE'
+		if test $patch_format = mbox && test "$last" -ne "1"
+		then
+			eval_gettextln "You can find the copy of the patch that failed here:
+   $dotest/patch"
+		fi
 		stop_here_user_resolve $this
 	fi
 

-- 
1.7.9.7