message: passing gdefault flag (setting) to neovim
diff: @@ -28,6 +28,8 @@ export class Neovim {
  if (Configuration.expandtab) {
  await vscode.commands.executeCommand('editor.action.indentationToTabs');
  }
  +
  + await nvim.setOption('gdefault', Configuration.substituteGlobalFlag === true);
  await buf.setLines(0, -1, true, TextEditor.getText().split('\n'));
  const [rangeStart, rangeEnd] = [
  Position.EarlierOf(vimState.cursorPosition, vimState.cursorStartPosition),
  