Fix remaining marked as done const* cppcheck warnings

examples/simplegrep.c

@@ -67,7 +67,7 @@
  * to pass in the pattern that was being searched for so we can print it out.
  */
 static int eventHandler(unsigned int id, unsigned long long from,
-                        unsigned long long to, unsigned int flags, void *ctx) {
+                        unsigned long long to, unsigned int flags, void *ctx) { // cppcheck-suppress constParameterCallback
     printf("Match for pattern \"%s\" at offset %llu\n", (char *)ctx, to);
     return 0;
 }