run modernize

kittens/diff/diff.go

@@ -119,10 +119,7 @@ func Diff(oldName, old, newName, new string, num_of_context_lines int) []byte {
 
 		// End chunk with common lines for context.
 		if len(ctext) > 0 {
-			n := end.x - start.x
-			if n > C {
-				n = C
-			}
+			n := min(end.x-start.x, C)
 			for _, s := range x[start.x : start.x+n] {
 				ctext = append(ctext, " "+s)
 				count.x++
@@ -237,7 +234,7 @@ func tgs(x, y []string) []pair {
 	for i := range T {
 		T[i] = n + 1
 	}
-	for i := 0; i < n; i++ {
+	for i := range n {
 		k := sort.Search(n, func(k int) bool {
 			return T[k] >= J[i]
 		})