Replace zero-length array decls with [].

C99 denotes variable-sized members with [], not [0].

Signed-off-by: Jason Riedy <ejr@cs.berkeley.edu>

ls-files.c

@@ -205,7 +205,7 @@ static int excluded(const char *pathname)
 
 struct nond_on_fs {
 	int len;
-	char name[0];
+	char name[];
 };
 
 static struct nond_on_fs **dir;