Fix a missing va_end() call in the intckMprintf() function of the

incremental integrity-check extension.

FossilOrigin-Name: 62ad2350e368dc337ba2d0fb6847d07c40a6f79520dd6414d22b5b54983b0b12

ext/intck/sqlite3intck.c

@@ -160,6 +160,7 @@ static char *intckMprintf(sqlite3_intck *p, const char *zFmt, ...){
     sqlite3_free(zRet);
     zRet = 0;
   }
+  va_end(ap);
   return zRet;
 }