message: Fix :substitute
  Oh, short circuiting, you're ever so sneaky
diff: @@ -311,7 +311,7 @@ export class SubstituteCommand extends node.CommandBase {
  if (this._abort) {
  break;
  }
  - foundPattern = foundPattern || (await this.replaceTextAtLine(currentLine, regex, vimState));
  + foundPattern = (await this.replaceTextAtLine(currentLine, regex, vimState)) || foundPattern;
  }
  if (!foundPattern) {
  throw VimError.fromCode(ErrorCode.PatternNotFound);
  