Use stderr for error output and build git_command more careful

---

 git.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

081fc78a8c8e640420ac7e44d93a2a45246f5c2f
diff --git a/git.c b/git.c
index bdd3f8d..9468b58 100644
--- a/git.c
+++ b/git.c
@@ -283,16 +283,15 @@ int main(int argc, char **argv, char **e
 	len = strlen(git_command);
 	prepend_to_path(git_command, len);
 
-	strncat(&git_command[len], "/git-", sizeof(git_command) - len);
-	len += 5;
-	strncat(&git_command[len], argv[i], sizeof(git_command) - len);
+	snprintf(git_command + len, sizeof(git_command) - len, "/git-%s",
+		 argv[i]);
 
 	if (access(git_command, X_OK))
 		usage(exec_path, "'%s' is not a git-command", argv[i]);
 
 	/* execve() can only ever return if it fails */
 	execve(git_command, &argv[i], envp);
-	printf("Failed to run command '%s': %s\n", git_command, strerror(errno));
+	fprintf(stderr, "git: '%s': %s\n", git_command, strerror(errno));
 
 	return 1;
 }
-- 
0.99.9.GIT