[PATCH 5/8] write_file: use xopen

[Jeff King <peff@peff.net>]

This simplifies the code a tiny bit, and provides consistent
error messages with other users of xopen().

While we're here, let's also switch to using O_WRONLY. We
know we're only going to open/write/close the file, so
there's no point in asking for O_RDWR.

Signed-off-by: Jeff King <peff@peff.net>
---
 wrapper.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/wrapper.c b/wrapper.c
index 0349441..7c126b8 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -644,9 +644,7 @@ void write_file(const char *path, const char *fmt, ...)
 {
 	va_list params;
 	struct strbuf sb = STRBUF_INIT;
-	int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
-	if (fd < 0)
-		die_errno(_("could not open %s for writing"), path);
+	int fd = xopen(path, O_WRONLY | O_CREAT | O_TRUNC, 0666);
 
 	va_start(params, fmt);
 	strbuf_vaddf(&sb, fmt, params);
-- 
2.9.0.393.g704e522