cli: bit of reafactor for clarity in packageExports

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

packages/cli/src/commands/migrate/packageExports.ts

@@ -30,7 +30,10 @@ export async function command() {
 
   await Promise.all(
     packages.map(async ({ dir, packageJson }) => {
-      let { exports: exp } = packageJson;
+      let changed = false;
+      let newPackageJson = packageJson;
+
+      let { exports: exp } = newPackageJson;
       if (!exp) {
         return;
       }
@@ -38,9 +41,6 @@ export async function command() {
         throw new Error('Unexpected array in package.json exports field');
       }
 
-      let changed = false;
-      let newPackageJson = packageJson;
-
       // If exports is a string we rewrite it to an object to add package.json
       if (typeof exp === 'string') {
         changed = true;