Fix nits from code review.

* Use go template consistently.
* Clean up braces and whitespace in templates.
* Rename template files.

h/t @lgfa29

Author: jmcarp

internal/generate/paths.go

@@ -315,27 +315,27 @@ func writeTpl(f *os.File, config methodTemplate) error {
 	var err error
 
 	if config.IsListAll {
-		t, err = template.ParseFiles("./templates/listall_method.tpl", "./templates/description.tpl")
+		t, err = template.ParseFiles("./templates/listall_method.go.tpl", "./templates/description.go.tpl")
 		if err != nil {
 			return err
 		}
 	} else if config.ResponseType == "" && config.HasBody {
-		t, err = template.ParseFiles("./templates/no_resptype_body_method.tpl", "./templates/description.tpl")
+		t, err = template.ParseFiles("./templates/no_resptype_body_method.go.tpl", "./templates/description.go.tpl")
 		if err != nil {
 			return err
 		}
 	} else if config.ResponseType == "" {
-		t, err = template.ParseFiles("./templates/no_resptype_method.tpl", "./templates/description.tpl")
+		t, err = template.ParseFiles("./templates/no_resptype_method.go.tpl", "./templates/description.go.tpl")
 		if err != nil {
 			return err
 		}
 	} else if config.HasBody {
-		t, err = template.ParseFiles("./templates/resptype_body_method.tpl", "./templates/description.tpl")
+		t, err = template.ParseFiles("./templates/resptype_body_method.go.tpl", "./templates/description.go.tpl")
 		if err != nil {
 			return err
 		}
 	} else {
-		t, err = template.ParseFiles("./templates/resptype_method.tpl", "./templates/description.tpl")
+		t, err = template.ParseFiles("./templates/resptype_method.go.tpl", "./templates/description.go.tpl")
 		if err != nil {
 			return err
 		}

…ernal/generate/templates/description.tpl …al/generate/templates/description.go.tplinternal/generate/templates/description.tpl renamed to internal/generate/templates/description.go.tpl internal/generate/templates/description.tpl renamed to internal/generate/templates/description.go.tpl

@@ -0,0 +1,3 @@
+{{splitDocString .Description}}
+{{.ValueType}} {{.Name}} {{.Value}}
+

internal/generate/templates/enum.go.tpl

@@ -0,0 +1,14 @@
+{{splitDocString .Description}}
+{{- if .Fields}}
+type {{.Name}} {{.Type}} {
+{{- range .Fields}}
+{{- if .Description}}
+	{{splitDocString .Description}}
+{{- end}}
+	{{.Name}} {{.Type}} {{.SerializationInfo}}
+{{- end}}
+}
+
+{{else}}
+type {{.Name}} {{.Type}}
+{{end -}}