testaudiocapture.c: added missing return statement to main()

test/testaudiocapture.c

@@ -197,10 +197,12 @@ int main(int argc, char **argv)
         }
     }
 #endif
+
     /* SDL_DestroyRenderer(renderer); */
     /* SDL_DestroyWindow(window); */
 
     /* SDL_Quit(); */
     /* SDLTest_CommonDestroyState(state); */
-    /* return 0; */
+
+    return 0;
 }