message: fix(compiler-cli): fix relative source paths on windows for extracted msg
  Fixes
diff: @@ -67,8 +67,9 @@ export class Extractor {
  serializer = new compiler.Xliff();
  }
  return bundle.write(
  - serializer,
  - (sourcePath: string) => sourcePath.replace(path.join(this.options.basePath, '/'), ''));
  + serializer, (sourcePath: string) => this.options.basePath ?
  + path.relative(this.options.basePath, sourcePath) :
  + sourcePath);
  }
  getExtension(formatName: string): string {
  