[PATCH/RFC] rev-list: fix --pretty=oneline with empty message

[Erik Faye-Lund <kusmabite@googlemail.com>]

55246aa (Dont use "<unknown>" for placeholders and suppress printing
of empty user formats) introduced a check to prevent empty
user-formats from being printed. This test didn't take empty commit
messages into account, and prevented the line-termination from being
output. This lead to multiple commits on a single line.

Correct it by guarding with a check for user-format.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---

This is a fix for the issue I posted about with rebase -i:
http://permalink.gmane.org/gmane.comp.version-control.git/141782

 builtin/rev-list.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/builtin/rev-list.c b/builtin/rev-list.c
index 5679170..133056b 100644
--- a/builtin/rev-list.c
+++ b/builtin/rev-list.c
@@ -135,7 +135,8 @@ static void show_commit(struct commit *commit, void *data)
 					putchar('\n');
 			}
 		} else {
-			if (buf.len)
+			if (revs->commit_format != CMIT_FMT_USERFORMAT ||
+			    buf.len)
 				printf("%s%c", buf.buf, info->hdr_termination);
 		}
 		strbuf_release(&buf);
-- 
1.7.0.2.456.g64f24