lint: Turn on gofumpt

All edits to .go files are made by
`tools/bin/golangci-lint run --fix ./...`, not by me as a human.

2 files changed, 11 insertions, 5 deletions

diff --git a/lib/btrfs/btrfstree/ops.go b/lib/btrfs/btrfstree/ops.go
index ddab630..537773a 100644
--- a/lib/btrfs/btrfstree/ops.go
+++ b/lib/btrfs/btrfstree/ops.go
@@ -504,7 +504,7 @@ func (fs TreeOperatorImpl) TreeSearchAll(treeID btrfsprim.ObjID, fn func(btrfspr
 	}
 	middleItem := middleNode.Data.BodyLeaf[middlePath.Node(-1).FromItemIdx]
 
-	var ret = []Item{middleItem}
+	ret := []Item{middleItem}
 	var errs derror.MultiError
 	for prevPath, prevNode := middlePath, middleNode; true; {
 		prevPath, prevNode, err = fs.prev(prevPath, prevNode)
diff --git a/lib/btrfs/btrfstree/types_node.go b/lib/btrfs/btrfstree/types_node.go
index d2e91de..b709d34 100644
--- a/lib/btrfs/btrfstree/types_node.go
+++ b/lib/btrfs/btrfstree/types_node.go
@@ -26,11 +26,13 @@ type NodeFlags uint64
 func (NodeFlags) BinaryStaticSize() int {
 	return 7
 }
+
 func (f NodeFlags) MarshalBinary() ([]byte, error) {
 	var bs [8]byte
 	binary.LittleEndian.PutUint64(bs[:], uint64(f))
 	return bs[:7], nil
 }
+
 func (f *NodeFlags) UnmarshalBinary(dat []byte) (int, error) {
 	var bs [8]byte
 	copy(bs[:7], dat[:7])
@@ -418,9 +420,11 @@ func (e *IOError) Unwrap() error { return e.Err }
 // NodeError are ErrNotANode and *IOError.
 func ReadNode[Addr ~int64](fs diskio.File[Addr], sb Superblock, addr Addr, exp NodeExpectations) (*diskio.Ref[Addr, Node], error) {
 	if int(sb.NodeSize) < binstruct.StaticSize(NodeHeader{}) {
-		return nil, &NodeError[Addr]{Op: "btrfstree.ReadNode", NodeAddr: addr,
+		return nil, &NodeError[Addr]{
+			Op: "btrfstree.ReadNode", NodeAddr: addr,
 			Err: fmt.Errorf("superblock.NodeSize=%v is too small to contain even a node header (%v bytes)",
-				sb.NodeSize, binstruct.StaticSize(NodeHeader{}))}
+				sb.NodeSize, binstruct.StaticSize(NodeHeader{})),
+		}
 	}
 	nodeBuf := make([]byte, sb.NodeSize)
 	if _, err := fs.ReadAt(nodeBuf, addr); err != nil {
@@ -456,9 +460,11 @@ func ReadNode[Addr ~int64](fs diskio.File[Addr], sb Superblock, addr Addr, exp N
 		return nodeRef, &NodeError[Addr]{Op: "btrfstree.ReadNode", NodeAddr: addr, Err: err}
 	}
 	if stored != calced {
-		return nodeRef, &NodeError[Addr]{Op: "btrfstree.ReadNode", NodeAddr: addr,
+		return nodeRef, &NodeError[Addr]{
+			Op: "btrfstree.ReadNode", NodeAddr: addr,
 			Err: fmt.Errorf("looks like a node but is corrupt: checksum mismatch: stored=%v calculated=%v",
-				stored, calced)}
+				stored, calced),
+		}
 	}
 
 	// parse (main)