message: remove signal null warning
diff: @@ -211,7 +211,11 @@ export function execute(command: string, args?: string[], outputConsumer?: Outpu
  });
  child?.on('exit', (code, signal) => {
  if (code !== 0) {
  - log.warning(localize({key: 'process.exit', comment: ['The space before and after all placeholders should be preserved.']}, 'The command: {0} exited with code: {1} and signal: {2}', `${cmdstr}`, `${code}`, `${signal}`));
  + if (signal !== null && signal !== undefined) {
  + log.warning(localize({key: 'process.exit.with.signal', comment: ['The space before and after all placeholders should be preserved.']}, 'The command: {0} exited with code: {1} and signal: {2}', `${cmdstr}`, `${code}`, `${signal}`));
  + } else {
  + log.warning(localize({key: 'process.exit', comment: ['The space before and after all placeholders should be preserved.']}, 'The command: {0} exited with code: {1}', `${cmdstr}`, `${code}`));
  + }
  }
  });
  child?.stdout?.on('data', (data: Uint8Array) => {
  