Turn up compiler warnings to max and fix them; one more indefinite length test
diff --git a/cmd_line_main.c b/cmd_line_main.c
index 63c670c..fbf9e22 100644
--- a/cmd_line_main.c
+++ b/cmd_line_main.c
@@ -38,7 +38,10 @@
 }
 
 
-int main(int argc, const char * argv[]) {   
+int main(int argc, const char * argv[])
+{
+    (void)argc; // Suppress unused warning
+    (void)argv; // Supress unused warning
    
     int nNumTestsFailed = run_tests(&fputs_wrapper, stdout, NULL);