fix opts

colcat.c

@@ -111,7 +111,7 @@ int main(int argc, char** argv) {
     generate_rainbow();
 
     if (argc > optcount + 1) {
-        for (int i = 1; i < argc; i++) {
+        for (int i = optcount + 1; i < argc; i++) {
             int err = open_and_cat(argv[i]);
             if (err) {
                 perror("Unable to open file");