small fix

Author: hai-x

src/servicesHost.ts

@@ -382,7 +382,6 @@ function createWatchFactory(
     }
     return result;
   }
-  ``;
 
   function invokeRecursiveDirectoryWatcher(
     directory: string,
@@ -800,10 +799,14 @@ export function makeSolutionBuilderHost(
         // The `configFilePath` is the same value that is used as the `project` parameter of
         // `getCustomtransformers` below.
         const project = options.configFilePath;
-        if (typeof project === "string") {
+        if (typeof project === 'string') {
           // Custom transformers need a reference to the `typescript.Program`, that reference is
           // unavailable during the the `getCustomTransformers` callback below.
-          const transformers = getCustomTransformers(instance.loaderOptions, result.getProgram(), result.getProgram);
+          const transformers = getCustomTransformers(
+            instance.loaderOptions,
+            result.getProgram(),
+            result.getProgram
+          );
           customTransformers.set(project, transformers);
         }
       }