attempt to improve 'got rebase' usage string
diff --git a/got/got.c b/got/got.c
index d0fbca4..fb96822 100644
--- a/got/got.c
+++ b/got/got.c
@@ -3206,7 +3206,8 @@ done:
__dead static void
usage_rebase(void)
{
- fprintf(stderr, "usage: %s rebase [-a] [-c] | branch\n", getprogname());
+ fprintf(stderr, "usage: %s rebase [-a] | [-c] | branch\n",
+ getprogname());
exit(1);
}