add: use unsigned type for collection of bits

The 'refresh' function in 'builtin/add.c' declares 'flags' as
signed, and passes it as an argument to the 'refresh_index'
function, which though expects an unsigned value.

Since in this case 'flags' represents a bag of bits, whose MSB is
not used in special ways, change the type of 'flags' to unsigned.

Signed-off-by: Eugenio Gigante <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: EuGig

builtin/add.c

@@ -115,7 +115,7 @@ static int refresh(int verbose, const struct pathspec *pathspec)
 	int i, ret = 0;
 	char *skip_worktree_seen = NULL;
 	struct string_list only_match_skip_worktree = STRING_LIST_INIT_NODUP;
-	int flags = REFRESH_IGNORE_SKIP_WORKTREE |
+	unsigned int flags = REFRESH_IGNORE_SKIP_WORKTREE |
 		    (verbose ? REFRESH_IN_PORCELAIN : REFRESH_QUIET);
 
 	seen = xcalloc(pathspec->nr, 1);