chore: style fixes from go fix (#10846)

Just `go fix ./...`

Signed-off-by: Jakob Borg <jakob@kastelo.net>

internal/db/sqlite/basedb.go

@@ -313,7 +313,7 @@ nextScript:
 		// files on lines containing only a semicolon and execute them
 		// separately. We require it on a separate line because there are
 		// also statement-internal semicolons in the triggers.
-		for _, stmt := range strings.Split(string(bs), "\n;") {
+		for stmt := range strings.SplitSeq(string(bs), "\n;") {
 			if _, err := tx.Exec(s.expandTemplateVars(stmt)); err != nil {
 				if strings.Contains(stmt, "syncthing:ignore-failure") {
 					// We're ok with this failing. Just note it.

internal/db/sqlite/folderdb_update.go

@@ -474,10 +474,7 @@ func (s *folderDB) recalcGlobalForFile(txp *txPreparedStmts, file string) error
 	// The global version is the first one in the list that is not invalid,
 	// or just the first one in the list if all are invalid.
 	var global fileRow
-	globIdx := slices.IndexFunc(es, func(e fileRow) bool { return !e.IsInvalid() })
-	if globIdx < 0 {
-		globIdx = 0
-	}
+	globIdx := max(slices.IndexFunc(es, func(e fileRow) bool { return !e.IsInvalid() }), 0)
 	global = es[globIdx]
 
 	// We "have" the file if the position in the list of versions is at the

internal/slogutil/leveler.go

@@ -41,8 +41,8 @@ func SetDefaultLevel(level slog.Level) {
 }
 
 func SetLevelOverrides(sttrace string) {
-	pkgs := strings.Split(sttrace, ",")
-	for _, pkg := range pkgs {
+	pkgs := strings.SplitSeq(sttrace, ",")
+	for pkg := range pkgs {
 		pkg = strings.TrimSpace(pkg)
 		if pkg == "" {
 			continue

internal/slogutil/slogadapter.go

@@ -45,11 +45,11 @@ type adapter struct {
 	l *slog.Logger
 }
 
-func (a adapter) Debugln(vals ...interface{}) {
+func (a adapter) Debugln(vals ...any) {
 	a.log(strings.TrimSpace(fmt.Sprintln(vals...)), slog.LevelDebug)
 }
 
-func (a adapter) Debugf(format string, vals ...interface{}) {
+func (a adapter) Debugf(format string, vals ...any) {
 	a.log(fmt.Sprintf(format, vals...), slog.LevelDebug)
 }