Silence some warning lines with --quiet

Author: Chick3nman

src/rp.c

@@ -819,15 +819,19 @@ int kernel_rules_load (hashcat_ctx_t *hashcat_ctx, kernel_rule_t **out_buf, u32
 
       if (result == -1)
       {
-        event_log_warning (hashcat_ctx, "Skipping invalid or unsupported rule in file %s on line %u: %s", rp_file, rule_line, rule_buf);
-
+        if (user_options->quiet == false)
+        {
+          event_log_warning (hashcat_ctx, "Skipping invalid or unsupported rule in file %s on line %u: %s", rp_file, rule_line, rule_buf);
+        }
         continue;
       }
 
       if (cpu_rule_to_kernel_rule (rule_buf, rule_len, &kernel_rules_buf[kernel_rules_cnt]) == -1)
       {
-        event_log_warning (hashcat_ctx, "Cannot convert rule for use on OpenCL device in file %s on line %u: %s", rp_file, rule_line, rule_buf);
-
+        if (user_options->quiet == false)
+        {
+          event_log_warning (hashcat_ctx, "Cannot convert rule for use on OpenCL device in file %s on line %u: %s", rp_file, rule_line, rule_buf);
+        }
         memset (&kernel_rules_buf[kernel_rules_cnt], 0, sizeof (kernel_rule_t)); // needs to be cleared otherwise we could have some remaining data
 
         continue;