use correct packageJson key for package.json contents

Author: koddsson

lib/dependency-graph.js

@@ -23,14 +23,14 @@ function recordPackageEntry(entry) {
 }
 
 if (packageFile) {
-  for (const key in packageFile.package) {
+  for (const key in packageFile.packageJson) {
     if (key === 'main') {
-      recordPackageEntry(packageFile.package.main)
+      recordPackageEntry(packageFile.packageJson.main)
     } else if (key === 'entries') {
-      packageFile.package.entries.forEach(recordPackageEntry)
+      packageFile.packageJson.entries.forEach(recordPackageEntry)
     } else if (/-bundles$/.test(key)) {
       // github-asset-pipeline internal manifest format
-      Object.keys(packageFile.package[key]).forEach(recordPackageEntry)
+      Object.keys(packageFile.packageJson[key]).forEach(recordPackageEntry)
     }
   }
 }