use write_file_buf where applicable

There are several places where we open a file, write some
content from a strbuf, and close it. These can be simplified
with write_file_buf(). As a bonus, many of these did not
catch write problems at close() time.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/builtin/am.c b/builtin/am.c
index a974223876..5fdf5b4c24 100644
--- a/builtin/am.c
+++ b/builtin/am.c
@@ -402,13 +402,8 @@ static int read_commit_msg(struct am_state *state)
  */
 static void write_commit_msg(const struct am_state *state)
 {
-	int fd;
 	const char *filename = am_path(state, "final-commit");
-
-	fd = xopen(filename, O_WRONLY | O_CREAT, 0666);
-	if (write_in_full(fd, state->msg, state->msg_len) < 0)
-		die_errno(_("could not write to %s"), filename);
-	close(fd);
+	write_file_buf(filename, state->msg, state->msg_len);
 }
 
 /**