Fix misspell errors

pkg/ingress/controller/nginx.go

@@ -643,7 +643,7 @@ func (n *NGINXController) OnUpdate(ingressCfg ingress.Configuration) error {
 			// Do not use defer to remove the temporal file.
 			// This is helpful when there is an error in the
 			// temporal configuration (we can manually inspect the file).
-			// Only remove the file when no error occured.
+			// Only remove the file when no error occurred.
 			os.Remove(tmpfile.Name())
 		}
 	}

pkg/ingress/controller/process/nginx.go

@@ -54,6 +54,11 @@ func WaitUntilPortIsAvailable(port int) {
 		conn.Close()
 		// kill nginx worker processes
 		fs, err := proc.NewFS("/proc")
+		if err != nil {
+			glog.Errorf("unexpected error reading /proc information: %v", err)
+			continue
+		}
+
 		procs, _ := fs.FS.AllProcs()
 		for _, p := range procs {
 			pn, err := p.Comm()