refactor: replace interface{} with any (Go 1.18+)

docs/v1/examples/generated-help-text.md

@@ -63,7 +63,7 @@ VERSION:
 `
 
   // EXAMPLE: Replace the `HelpPrinter` func
-  cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+  cli.HelpPrinter = func(w io.Writer, templ string, data any) {
     fmt.Println("Ha HA.  I pwnd the help!!1")
   }
 
@@ -103,4 +103,4 @@ func main() {
     log.Fatal(err)
   }
 }
-```
+```

docs/v1/examples/version-flag.md

@@ -110,7 +110,7 @@ func init() {
   cli.BashCompletionFlag = cli.BoolFlag{Name: "compgen", Hidden: true}
   cli.VersionFlag = cli.BoolFlag{Name: "print-version, V"}
 
-  cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+  cli.HelpPrinter = func(w io.Writer, templ string, data any) {
     fmt.Fprintf(w, "best of luck to you\n")
   }
   cli.VersionPrinter = func(c *cli.Context) {
@@ -345,7 +345,7 @@ func main() {
     app.ErrWriter = &hexWriter{}
   }
 
-  app.Metadata = map[string]interface{}{
+  app.Metadata = map[string]any{
     "layers":     "many",
     "explicable": false,
     "whatever-values": 19.99,
@@ -360,4 +360,4 @@ func wopAction(c *cli.Context) error {
   fmt.Fprintf(c.App.Writer, ":wave: over here, eh\n")
   return nil
 }
-```
+```

docs/v2/examples/full-api-example.md

@@ -34,7 +34,7 @@ func init() {
 	cli.HelpFlag = &cli.BoolFlag{Name: "halp"}
 	cli.VersionFlag = &cli.BoolFlag{Name: "print-version", Aliases: []string{"V"}}
 
-	cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+	cli.HelpPrinter = func(w io.Writer, templ string, data any) {
 		fmt.Fprintf(w, "best of luck to you\n")
 	}
 	cli.VersionPrinter = func(cCtx *cli.Context) {
@@ -242,7 +242,7 @@ func main() {
 			fmt.Printf("made it!\n")
 			return ec
 		},
-		Metadata: map[string]interface{}{
+		Metadata: map[string]any{
 			"layers":          "many",
 			"explicable":      false,
 			"whatever-values": 19.99,
@@ -261,4 +261,4 @@ func wopAction(cCtx *cli.Context) error {
 	fmt.Fprintf(cCtx.App.Writer, ":wave: over here, eh\n")
 	return nil
 }
-```
+```

docs/v2/examples/generated-help-text.md

@@ -64,7 +64,7 @@ VERSION:
 `
 
 	// EXAMPLE: Replace the `HelpPrinter` func
-	cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+	cli.HelpPrinter = func(w io.Writer, templ string, data any) {
 		fmt.Println("Ha HA.  I pwnd the help!!1")
 	}
 
@@ -98,4 +98,4 @@ func main() {
 
 	(&cli.App{}).Run(os.Args)
 }
-```
+```

docs/v3/examples/full-api-example.md

@@ -35,7 +35,7 @@ func init() {
 	cli.HelpFlag = &cli.BoolFlag{Name: "halp"}
 	cli.VersionFlag = &cli.BoolFlag{Name: "print-version", Aliases: []string{"V"}}
 
-	cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+	cli.HelpPrinter = func(w io.Writer, templ string, data any) {
 		fmt.Fprintf(w, "best of luck to you\n")
 	}
 	cli.VersionPrinter = func(cmd *cli.Command) {
@@ -216,7 +216,7 @@ func main() {
 			fmt.Printf("made it!\n")
 			return ec
 		},
-		Metadata: map[string]interface{}{
+		Metadata: map[string]any{
 			"layers":          "many",
 			"explicable":      false,
 			"whatever-values": 19.99,
@@ -235,4 +235,4 @@ func wopAction(ctx context.Context, cmd *cli.Command) error {
 	fmt.Fprintf(cmd.Root().Writer, ":wave: over here, eh\n")
 	return nil
 }
-```
+```

docs/v3/examples/help/generated-help-text.md

@@ -64,7 +64,7 @@ VERSION:
 `
 
 	// EXAMPLE: Replace the `HelpPrinter` func
-	cli.HelpPrinter = func(w io.Writer, templ string, data interface{}) {
+	cli.HelpPrinter = func(w io.Writer, templ string, data any) {
 		fmt.Println("Ha HA.  I pwnd the help!!1")
 	}
 
@@ -99,4 +99,4 @@ func main() {
 
 	(&cli.Command{}).Run(context.Background(), os.Args)
 }
-```
+```

help_test.go

@@ -520,7 +520,7 @@
 		/*{
 			name:     "standard-command",
 			template: "",
-			printer: func(w io.Writer, templ string, data interface{}) {
+			printer: func(w io.Writer, templ string, data any) {
 				fmt.Fprint(w, "yo")
 			},
 			command:      "my-command",
@@ -530,9 +530,9 @@
 		{
 			name:     "custom-template-command",
 			template: "{{doublecho .Name}}",
-			printer: func(w io.Writer, templ string, data interface{}) {
+			printer: func(w io.Writer, templ string, data any) {
 				// Pass a custom function to ensure it gets used
-				fm := map[string]interface{}{"doublecho": doublecho}
+				fm := map[string]any{"doublecho": doublecho}
 				HelpPrinterCustom(w, templ, data, fm)
 			},
 			command:      "my-command",
@@ -2143,4 +2143,4 @@
 
 	_ = cmd.Run(buildTestContext(t), []string{"app", "help"})
 	assert.Contains(t, out.String(), UsageCommandHelp)
-}
+}