[PATCH v2 3/2] credential-cache: use child_process.args

[Junio C Hamano <gitster@pobox.com>]

As child_process structure has an embedded strvec args for
formulating the command line, let's use it instead of using
an out-of-line argv[] whose length needs to be maintained
correctly. 

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 builtin/credential-cache.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/builtin/credential-cache.c b/builtin/credential-cache.c
index d0fafdeb9e..195335a783 100644
--- a/builtin/credential-cache.c
+++ b/builtin/credential-cache.c
@@ -42,13 +42,13 @@ static int send_request(const char *socket, const struct strbuf *out)
 static void spawn_daemon(const char *socket)
 {
 	struct child_process daemon = CHILD_PROCESS_INIT;
-	const char *argv[] = { NULL, NULL, NULL };
 	char buf[128];
 	int r;
 
-	argv[0] = "git-credential-cache--daemon";
-	argv[1] = socket;
-	daemon.argv = argv;
+	strvec_pushl(&daemon.args, 
+		     "credential-cache--daemon", socket,
+		     NULL);
+	daemon.git_cmd = 1;
 	daemon.no_stdin = 1;
 	daemon.out = -1;