[PATCH v2] tag -v: use RUN_GIT_CMD to run verify-tag

This is the preferred way to run a git command.

The only obvious observable effects I can think of are that the exec
is properly reported in GIT_TRACE output and that verifying signed
tags will still work if the git-verify-tag hard link in gitexecdir
goes missing.

Helped-by: Johannes Sixt [off-list ref]
Signed-off-by: Jonathan Nieder <redacted>
---
v1 was part of a longer series that replaced the run_command with a
function call [1].

Thanks to Hannes for the pointer.

[1] http://thread.gmane.org/gmane.comp.version-control.git/142681/focus=142682
What about the rest of the series?  Without some facility [2] to
verify tags without going out of the way to do it, it is hard to end
up using tag -v often enough to notice the speed difference.
[2] maybe a fetch-update hook.
http://thread.gmane.org/gmane.comp.version-control.git/101585/focus=101590

 builtin/tag.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/builtin/tag.c b/builtin/tag.c
index 4ef1c4f..d311491 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c

@@ -147,11 +147,11 @@ static int delete_tag(const char *name, const char *ref,
 static int verify_tag(const char *name, const char *ref,
 				const unsigned char *sha1)
 {
-	const char *argv_verify_tag[] = {"git-verify-tag",
+	const char *argv_verify_tag[] = {"verify-tag",
 					"-v", "SHA1_HEX", NULL};
 	argv_verify_tag[2] = sha1_to_hex(sha1);
 
-	if (run_command_v_opt(argv_verify_tag, 0))
+	if (run_command_v_opt(argv_verify_tag, RUN_GIT_CMD))
 		return error("could not verify the tag '%s'", name);
 	return 0;
 }

-- 
1.7.1.rc1