From b6fab751e1f3f61f1bc8305f7c90d64d7afab38d Mon Sep 17 00:00:00 2001
From: Sebastiaan van Stijn <github@gone.nl>
Date: Thu, 12 Feb 2026 18:58:15 +0100
Subject: [PATCH] modernize some code

Results of running the modernize command;

    go install golang.org/x/tools/go/analysis/passes/modernize/cmd/modernize@latest
    modernize -fix ./...

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
---
 clidocstool.go    | 2 +-
 clidocstool_md.go | 6 +++---
 markdown.go       | 2 +-
 markdown_test.go  | 2 --
 4 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/clidocstool.go b/clidocstool.go
index 6b853ca..40cf54f 100644
--- a/clidocstool.go
+++ b/clidocstool.go
@@ -174,7 +174,7 @@ func copyFile(src string, dst string) error {
 func getAliases(cmd *cobra.Command) []string {
 	if a := cmd.Annotations["aliases"]; a != "" {
 		aliases := strings.Split(a, ",")
-		for i := 0; i < len(aliases); i++ {
+		for i := range aliases {
 			aliases[i] = strings.TrimSpace(aliases[i])
 		}
 		return aliases
diff --git a/clidocstool_md.go b/clidocstool_md.go
index 4d52405..920f219 100644
--- a/clidocstool_md.go
+++ b/clidocstool_md.go
@@ -110,10 +110,10 @@ func (c *Client) GenMarkdownTree(cmd *cobra.Command) error {
 
 	cs := string(content)
 
-	start := strings.Index(cs, "<!---MARKER_GEN_START-->")
+	before, _, ok := strings.Cut(cs, "<!---MARKER_GEN_START-->")
 	end := strings.Index(cs, "<!---MARKER_GEN_END-->")
 
-	if start == -1 {
+	if !ok {
 		return fmt.Errorf("no start marker in %s", mdFile)
 	}
 	if end == -1 {
@@ -124,7 +124,7 @@ func (c *Client) GenMarkdownTree(cmd *cobra.Command) error {
 	if err != nil {
 		return err
 	}
-	cont := cs[:start] + "<!---MARKER_GEN_START-->" + "\n" + out + "\n" + cs[end:]
+	cont := before + "<!---MARKER_GEN_START-->" + "\n" + out + "\n" + cs[end:]
 
 	fi, err := os.Stat(targetPath)
 	if err != nil {
diff --git a/markdown.go b/markdown.go
index bd85487..3517278 100644
--- a/markdown.go
+++ b/markdown.go
@@ -74,7 +74,7 @@ func cleanupMarkDown(mdString string) (md string, anchors []string) {
 	var id string
 	// replace trailing whitespace per line, and handle custom anchors
 	lines := strings.Split(mdString, "\n")
-	for i := 0; i < len(lines); i++ {
+	for i := range lines {
 		lines[i] = strings.TrimRightFunc(lines[i], unicode.IsSpace)
 		lines[i], id = convertHTMLAnchor(lines[i])
 		if id != "" {
diff --git a/markdown_test.go b/markdown_test.go
index 97c9e20..4ab4424 100644
--- a/markdown_test.go
+++ b/markdown_test.go
@@ -101,7 +101,6 @@ Last line.`,
 		},
 	}
 	for _, tc := range tests {
-		tc := tc
 		t.Run(tc.doc, func(t *testing.T) {
 			out, _ := cleanupMarkDown(tc.in)
 			if out != tc.expected {
@@ -147,7 +146,6 @@ func TestConvertHTMLAnchor(t *testing.T) {
 		},
 	}
 	for _, tc := range tests {
-		tc := tc
 		t.Run(tc.in, func(t *testing.T) {
 			out, id := convertHTMLAnchor(tc.in)
 			if id != tc.id {