Merge pull request #30 from mydea/fn/fix-commander-usage

fix: Fix commander usage after upgrade to 7.x

Author: mydea

lib/update-dep.js

@@ -30,7 +30,7 @@ async function yarnUpdateDependency() {
     .option('-ny, --no-yarn', 'Do not auto-run "yarn install"')
     .parse(process.argv);
 
-  let { targetVersion, package, caret, exact, yarn: runYarn } = program;
+  let { targetVersion, package, caret, exact, yarn: runYarn } = program.opts();
 
   package = package || posPackage;
   let version = targetVersion || posVersion;