Fix 'pacth' to 'patch' (#157)

* Fix 'pacth' to 'patch'

* Correct spelling of return

Author: grantwwu

packages/opencensus-instrumentation-grpc/src/grpc.ts

@@ -107,7 +107,7 @@ export class GrpcPlugin extends BasePlugin {
    * Patches gRPC incoming and outcoming request functions.
    */
   protected applyPatch() {
-    this.logger.debug('applying pacth to %s@%s', this.moduleName, this.version);
+    this.logger.debug('applying patch to %s@%s', this.moduleName, this.version);
 
     shimmer.wrap(
         this.moduleExports.Server.prototype, 'register' as never,

packages/opencensus-instrumentation-http/src/http.ts

@@ -54,7 +54,7 @@ export class HttpPlugin extends BasePlugin {
    * Patches HTTP incoming and outcoming request functions.
    */
   protected applyPatch() {
-    this.logger.debug('applying pacth to %s@%s', this.moduleName, this.version);
+    this.logger.debug('applying patch to %s@%s', this.moduleName, this.version);
 
     shimmer.wrap(
         this.moduleExports, 'request', this.getPatchOutgoingRequestFunction());
@@ -321,7 +321,7 @@ export class HttpPlugin extends BasePlugin {
         span.end();
       });
 
-      plugin.logger.debug('makeRequestTrace retun request');
+      plugin.logger.debug('makeRequestTrace return request');
       return request;
     };
   }

packages/opencensus-instrumentation-https/src/https.ts

@@ -33,7 +33,7 @@ export class HttpsPlugin extends HttpPlugin {
    * Patches HTTPS incoming and outcoming request functions.
    */
   protected applyPatch() {
-    this.logger.debug('applying pacth to %s@%s', this.moduleName, this.version);
+    this.logger.debug('applying patch to %s@%s', this.moduleName, this.version);
 
     if (this.moduleExports && this.moduleExports.Server &&
         this.moduleExports.Server.prototype) {