[PATCH] format-patch: show 0/1 and 1/1 for singleton patch with cover letter

[Jacob Keller <jacob.e.keller@intel.com>]

From: Jacob Keller <jacob.keller@gmail.com>

Change the default behavior of git-format-patch to generate numbered
sequence of 0/1 and 1/1 when generating both a cover-letter and a single
patch. This standardizes the cover letter to have 0/N which helps
distinguish the cover letter from the patch itself. Since the behavior
is easily changed via configuration as well as the use of -n and -N this
should be acceptable default behavior.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
---
 builtin/log.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/log.c b/builtin/log.c
index 92dc34dcb0cc..8e6100fb0c5b 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -1676,7 +1676,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
 		/* nothing to do */
 		return 0;
 	total = nr;
-	if (!keep_subject && auto_number && total > 1)
+	if (!keep_subject && auto_number && (total > 1 || cover_letter))
 		numbered = 1;
 	if (numbered)
 		rev.total = total + start_number - 1;
-- 
2.10.0.rc0.259.g83512d9