all: Minor cleanups

if x { return true } return false => return x

	fmt.Sprintf("%v", x) => fmt.Sprint(x) or x.String()

The fmt.Sprintf idiom is still used in the SecretString tests, where it
serves security hardening.

internal/archiver/testing_test.go

@@ -217,7 +217,7 @@ func TestTestWalkFiles(t *testing.T) {
 					return err
 				}
 
-				got[p] = fmt.Sprintf("%v", item)
+				got[p] = fmt.Sprint(item)
 				return nil
 			})
 

internal/cache/file_test.go

@@ -97,7 +97,7 @@ func TestFiles(t *testing.T) {
 	}
 
 	for _, tpe := range tests {
-		t.Run(fmt.Sprintf("%v", tpe), func(t *testing.T) {
+		t.Run(tpe.String(), func(t *testing.T) {
 			ids := generateRandomFiles(t, tpe, c)
 			id := randomID(ids)
 

internal/restic/blob.go

@@ -114,11 +114,7 @@ func (h BlobHandles) Less(i, j int) bool {
 			continue
 		}
 
-		if b < h[j].ID[k] {
-			return true
-		}
-
-		return false
+		return b < h[j].ID[k]
 	}
 
 	return h[i].Type < h[j].Type
@@ -133,5 +129,5 @@ func (h BlobHandles) String() string {
 	for _, e := range h {
 		elements = append(elements, e.String())
 	}
-	return fmt.Sprintf("%v", elements)
+	return fmt.Sprint(elements)
 }

internal/restic/ids.go

@@ -65,5 +65,5 @@ func (ids IDs) String() string {
 	for _, id := range ids {
 		elements = append(elements, shortID(id))
 	}
-	return fmt.Sprintf("%v", elements)
+	return fmt.Sprint(elements)
 }

internal/restic/tag_list.go

@@ -37,7 +37,7 @@ func (TagList) Type() string {
 type TagLists []TagList
 
 func (l TagLists) String() string {
-	return fmt.Sprintf("%v", []TagList(l))
+	return fmt.Sprint([]TagList(l))
 }
 
 // Flatten returns the list of all tags provided in TagLists