run modernize

Author: cce

test/errorcontains/capture.go

@@ -208,7 +208,7 @@ func Summary(inputPath string) (map[string]int, error) {
 
 	// Count occurrences of each error type
 	counts := make(map[string]int)
-	for _, line := range strings.Split(string(data), "\n") {
+	for line := range strings.SplitSeq(string(data), "\n") {
 		if line == "" {
 			continue
 		}

test/errorcontains/cmd/aggregate/main.go

@@ -24,6 +24,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"slices"
 	"sort"
 	"strings"
 
@@ -176,7 +177,7 @@ func readAndAggregate(filename string) (map[string]*CallSite, error) {
 		}
 
 		// Add unique samples (up to 10 for LCS computation)
-		if len(site.Samples) < 10 && !containsString(site.Samples, entry.ErrorMsg) {
+		if len(site.Samples) < 10 && !slices.Contains(site.Samples, entry.ErrorMsg) {
 			site.Samples = append(site.Samples, entry.ErrorMsg)
 		}
 	}
@@ -195,15 +196,6 @@ func normalizePath(path string) string {
 	return filepath.Base(path)
 }
 
-func containsString(slice []string, s string) bool {
-	for _, item := range slice {
-		if item == s {
-			return true
-		}
-	}
-	return false
-}
-
 // longestCommonSubstring finds the longest substring common to all strings.
 func longestCommonSubstring(strs []string) string {
 	if len(strs) == 0 {