use lowercase 'quote' for consistency with existing custom command template functions

docs/Custom_Command_Keybindings.md

@@ -8,7 +8,7 @@ customCommands:
     command: 'hub browse -- "commit/{{.SelectedLocalCommit.Sha}}"'
     context: 'commits'
   - key: 'a'
-    command: "git {{if .SelectedFile.HasUnstagedChanges}} add {{else}} reset {{end}} {{.SelectedFile.Name | Quote}}"
+    command: "git {{if .SelectedFile.HasUnstagedChanges}} add {{else}} reset {{end}} {{.SelectedFile.Name | quote}}"
     context: 'files'
     description: 'toggle file staged'
   - key: 'C'

pkg/gui/services/custom_commands/handler_creator.go

@@ -168,7 +168,7 @@ func (self *HandlerCreator) getResolveTemplateFn(form map[string]string, promptR
 	}
 
 	funcs := template.FuncMap{
-		"Quote": self.os.Quote,
+		"quote": self.os.Quote,
 	}
 
 	return func(templateStr string) (string, error) { return utils.ResolveTemplate(templateStr, objects, funcs) }

pkg/integration/tests/custom_commands/form_prompts.go

@@ -17,7 +17,7 @@ var FormPrompts = NewIntegrationTest(NewIntegrationTestArgs{
 			{
 				Key:     "a",
 				Context: "files",
-				Command: `echo {{.Form.FileContent | Quote}} > {{.Form.FileName | Quote}}`,
+				Command: `echo {{.Form.FileContent | quote}} > {{.Form.FileName | quote}}`,
 				Prompts: []config.CustomCommandPrompt{
 					{
 						Key:   "FileName",