Merge pull request serverless#2800 from dougmoscrop/fix_linting

fix Linting

Author: pmuens

lib/plugins/aws/info/index.js

@@ -161,7 +161,7 @@ ${chalk.yellow('region:')} ${info.region}`;
         apiKeysMessage = apiKeysMessage.concat(`\n  ${apiKeyInfo.name}: ${apiKeyInfo.value}`);
       });
     } else {
-      apiKeysMessage = apiKeysMessage.concat(`\n  None`);
+      apiKeysMessage = apiKeysMessage.concat('\n  None');
     }
 
     message = message.concat(`${apiKeysMessage}`);
@@ -189,7 +189,7 @@ ${chalk.yellow('region:')} ${info.region}`;
         });
       });
     } else {
-      endpointsMessage = endpointsMessage.concat(`\n  None`);
+      endpointsMessage = endpointsMessage.concat('\n  None');
     }
 
     message = message.concat(endpointsMessage);
@@ -202,7 +202,7 @@ ${chalk.yellow('region:')} ${info.region}`;
         functionsMessage = functionsMessage.concat(`\n  ${f.name}: ${f.arn}`);
       });
     } else {
-      functionsMessage = functionsMessage.concat(`\n  None`);
+      functionsMessage = functionsMessage.concat('\n  None');
     }
 
     message = message.concat(`${functionsMessage}\n`);