commit.c: make find_commit_subject() more robust

Just like the pretty printing machinery, we should simply ignore
blank lines at the beginning of the commit messages.

This discrepancy was noticed when an early version of the
rebase--helper produced commit objects with more than one empty line
between the header and the commit message.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/commit.c b/commit.c
index 0eee410764..116774c210 100644
--- a/commit.c
+++ b/commit.c
@@ -398,7 +398,7 @@ int find_commit_subject(const char *commit_buffer, const char **subject)
 	while (*p && (*p != '\n' || p[1] != '\n'))
 		p++;
 	if (*p) {
-		p += 2;
+		p = skip_blank_lines(p + 2);
 		for (eol = p; *eol && *eol != '\n'; eol++)
 			; /* do nothing */
 	} else