Remove my Keyword from $result Variable

The return result obtained from the waitpid($monitorPid) will account
for a failure of the update process and force $result to be 1 (an error
status).

If the update was successful then $result is unchanged, which means if
the build process had failed, then $result would still indicate failure.
That didn't work due to the addition of the 'my', which masked the
top-level $result.

BUG: 330388

modules/ksb/Application.pm

@@ -1717,7 +1717,7 @@ sub _handle_async_build
     else {
         # Still the parent, let's do the build.
         $ipc->setReceiver();
-        my $result = _handle_build ($ipc, $ctx);
+        $result = _handle_build ($ipc, $ctx);
     }
 
     # Exit code is in $?.