Fix ipMatch entry on ErrorLog and DebugLog

ipMatch message on error log was not correct, it was missing the matched
ip address. This commit adds the correct matched ip address.
(See issue #738)

Author: Felipe Zimmerle

apache2/re_operators.c

@@ -145,7 +145,7 @@ static int msre_op_ipmatch_execute(modsec_rec *msr, msre_rule *rule, msre_var *v
     }
 
     if (res > 0) {
-        *error_msg = apr_psprintf(msr->mp, "%s at %s.", *error_msg, var->name);
+        *error_msg = apr_psprintf(msr->mp, "IPmatch: \"%s\" matched at %s.", var->value, var->name);
     }
 
     return res;