Merge branch 'jk/format-patch-change-format-for-empty-commits'

"git format-patch" learned to write a log-message only output file
for empty commits.

* jk/format-patch-change-format-for-empty-commits:
  format-patch: output header for empty commits

1 files changed, 1 insertions, 0 deletions

diff --git a/builtin/log.c b/builtin/log.c
index b62e629ba8..bc204ea76f 100644
--- a/builtin/log.c
+++ b/builtin/log.c
@@ -2097,6 +2097,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix)
 
 	/* Always generate a patch */
 	rev.diffopt.output_format |= DIFF_FORMAT_PATCH;
+	rev.always_show_header = 1;
 
 	rev.zero_commit = zero_commit;
 	rev.patch_name_max = fmt_patch_name_max;