ctucx.git: stagit

fix error in "code cleanup" commit 9328d2690e118127bcaa5cf9f665d8e7711f7a03

... the loop was simplified, but forgot to remove p++ (double used) while
rebasing the change.

diff --git a/stagit.c b/stagit.c
@@ -722,7 +722,6 @@ writeblob(git_object *obj, const char *fpath, const char *filename, git_off_t fi
 	for (p = fpath, tmp[0] = '\0'; *p; p++) {
 		if (*p == '/' && strlcat(tmp, "../", sizeof(tmp)) >= sizeof(tmp))
 			errx(1, "path truncated: '../%s'", tmp);
-		p++;
 	}
 	relpath = tmp;