only use constant string for string formatting

noticed since go1.24rc1
mjl- · Dec 14, 2024 · c289dc2 · c289dc2
1 parent 48c2062
commit c289dc2
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/main.go b/main.go
@@ -180,7 +180,7 @@ func main() {
 
 func printFile(name string) {
 	f, err := fsys.Open(name)
-	xcheckf(err, "opening file "+name)
+	xcheckf(err, "opening file %s", name)
 	_, err = io.Copy(os.Stdout, f)
 	xcheckf(err, "copy")
 	err = f.Close()