Return error when not checking out an entry due to dirtiness.

Without -f flag, 'git-checkout-index foo.c' issued an error message
when foo.c already existed in the working tree and did not match index.
However it did not return an error from the underlying checkout_entry()
function and resulted in a successful exit(0).

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/entry.c b/entry.c
index b8426dbd0d..15b34eb6f9 100644
--- a/entry.c
+++ b/entry.c
@@ -132,7 +132,7 @@ int checkout_entry(struct cache_entry *ce, struct checkout *state)
 		if (!state->force) {
 			if (!state->quiet)
 				fprintf(stderr, "git-checkout-index: %s already exists\n", path);
-			return 0;
+			return -1;
 		}
 
 		/*