message: Update. Make type explicit
diff: @@ -7,7 +7,7 @@ export interface ExternalCommand {
  args?: string[]
  }
  -export function escapeRegExp(str) {
  +export function escapeRegExp(str: string) {
  return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, '\\$&')
  }
  