logs: log dep name with pin message

lib/manager/npm/lookup/range.js

@@ -25,12 +25,12 @@ function getRangeStrategy(config) {
   }
   if (depType === 'devDependencies') {
     // Always pin devDependencies
-    logger.debug({ depName }, 'Pinning devDependency');
+    logger.debug({ dependency: depName }, 'Pinning devDependency');
     return 'pin';
   }
   if (depType === 'dependencies' && packageJsonType === 'app') {
     // Pin dependencies if we're pretty sure it's not a browser library
-    logger.debug('Pinning app dependency');
+    logger.debug({ dependency: depName }, 'Pinning app dependency');
     return 'pin';
   }
   if (depType === 'peerDependencies') {