Fixed assert() usage:

- added some missing
 - removed some invalid
 - removed some that were not relevant in the context of the current function, when done in a called function

apache2/modsecurity.c

@@ -675,6 +675,7 @@ static apr_status_t modsecurity_process_phase_response_headers(modsec_rec *msr)
  *
  */
 static apr_status_t modsecurity_process_phase_response_body(modsec_rec *msr) {
+    assert(msr != NULL);
     apr_time_t time_before;
     apr_status_t rc = 0;
     
@@ -706,6 +707,7 @@ static apr_status_t modsecurity_process_phase_response_body(modsec_rec *msr) {
  *
  */
 static apr_status_t modsecurity_process_phase_logging(modsec_rec *msr) {
+    assert(msr != NULL);
     apr_time_t time_before, time_after;
 
     if (msr->txcfg->debuglog_level >= 4) {