message: updated inline code docs for codegen --target
  resolves
diff: @@ -36,7 +36,7 @@ export default class Generate extends ClientCommand {
  // general
  target: flags.string({
  description:
  - "Type of code generator to use (swift | typescript | flow | scala), inferred from output",
  + "Type of code generator to use (swift | typescript | flow | scala)",
  required: true
  }),
  localSchemaFile: flags.string({
  