More ccpcheck-related fixes

examples/poll/select_listener.c

@@ -173,7 +173,7 @@ void *select_listener(pthread_addr_t pvarg)
                 }
 
               buffer[nbytes] = '\0';
-              printf("select_listener: Read '%s' (%d bytes)\n", buffer, nbytes);
+              printf("select_listener: Read '%s' (%ld bytes)\n", buffer, (long)nbytes);
             }
 
           timeout = false;

system/vi/vi.c

@@ -1230,6 +1230,7 @@ static bool vi_savetext(FAR struct vi_s *vi, FAR const char *filename,
       /* Report the error (or partial write).  EINTR is not handled. */
 
       vi_error(vi, g_fmtcmdfail, "fwrite", errno);
+      (void)fclose(stream);
       return false;
     }