Reduce linter ignores

internal/debug/debug.go

@@ -64,10 +64,11 @@ func parseFilter(envname string, pad func(string) string) map[string]bool {
 	for _, fn := range strings.Split(env, ",") {
 		t := pad(strings.TrimSpace(fn))
 		val := true
-		if t[0] == '-' {
+		switch t[0] {
+		case '-':
 			val = false
 			t = t[1:]
-		} else if t[0] == '+' {
+		case '+':
 			val = true
 			t = t[1:]
 		}

internal/repository/index/index_test.go

@@ -297,11 +297,12 @@ func TestIndexUnserialize(t *testing.T) {
 			rtest.Equals(t, test.tpe, blob.Type)
 			rtest.Equals(t, test.offset, blob.Offset)
 			rtest.Equals(t, test.length, blob.Length)
-			if task.version == 1 {
+			switch task.version {
+			case 1:
 				rtest.Equals(t, uint(0), blob.UncompressedLength)
-			} else if task.version == 2 {
+			case 2:
 				rtest.Equals(t, test.uncompressedLength, blob.UncompressedLength)
-			} else {
+			default:
 				t.Fatal("Invalid index version")
 			}
 		}

internal/restorer/restorer.go

@@ -593,10 +593,11 @@ func shouldOverwrite(overwrite OverwriteBehavior, node *restic.Node, destination
 		return false, err
 	}
 
-	if overwrite == OverwriteIfNewer {
+	switch overwrite {
+	case OverwriteIfNewer:
 		// return if node is newer
 		return node.ModTime.After(fi.ModTime()), nil
-	} else if overwrite == OverwriteNever {
+	case OverwriteNever:
 		// file exists
 		return false, nil
 	}