fix style

Author: brendandburns

src/gcp_auth.ts

@@ -62,18 +62,16 @@ export class GoogleCloudPlatformAuth implements Authenticator {
     }
 
     private updateAccessToken(config: Config): void {
-        let cmd = config['cmd-path'];
+        const cmd = config['cmd-path'];
         if (!cmd) {
             throw new Error('Token is expired!');
         }
-        const args = (config['cmd-args'] ? config['cmd-args'].split(' ') : []).map(
-            (arg: string): string => {
-                if (arg[0] == '\'' || arg[0] == '"') {
-                    return arg.substring(1, arg.length-1);
-                }
-                return arg;
+        const args = (config['cmd-args'] ? config['cmd-args'].split(' ') : []).map((arg: string): string => {
+            if (arg[0] === "'" || arg[0] === '"') {
+                return arg.substring(1, arg.length - 1);
             }
-        );
+            return arg;
+        });
         // TODO: Cache to file?
         // TODO: do this asynchronously
         let output: any;