Fix go fmt issues

mux_test.go

@@ -1300,7 +1300,6 @@ func testTemplate(t *testing.T, test routeTest) {
 		t.Errorf("(%v) GetPathTemplate not equal: expected %v, got %v", test.title, path_template, path_tmpl)
 	}
 
-
 	host_tmpl, host_err := route.GetHostTemplate()
 	if host_err == nil && host_tmpl != host_template {
 		t.Errorf("(%v) GetHostTemplate not equal: expected %v, got %v", test.title, host_template, host_tmpl)