Fix linting issues: remove redundant build tags and use errors.New

Signed-off-by: Varun Gokulnath <vagokuln@microsoft.com>
Signed-off-by: Varun Gokulnath <gvarun22@outlook.com>

reparse.go

@@ -1,11 +1,11 @@
 //go:build windows
-// +build windows
 
 package winio
 
 import (
 	"bytes"
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"strings"
 	"unicode/utf16"
@@ -61,7 +61,7 @@ func DecodeReparsePointData(tag uint32, b []byte) (*ReparsePoint, error) {
 	case reparseTagLxSymlink:
 		// LX symlinks store the target as UTF-8 after a 4-byte version field
 		if len(b) < 4 {
-			return nil, fmt.Errorf("LX symlink buffer too short")
+			return nil, errors.New("LX symlink buffer too short")
 		}
 		targetBytes := b[4:]
 		for i, c := range targetBytes {

reparse_lx_test.go

@@ -1,5 +1,4 @@
 //go:build windows
-// +build windows
 
 package winio
 
@@ -10,7 +9,7 @@ import (
 func TestLxSymlinkRoundTrip(t *testing.T) {
 	// Test LX symlink encode/decode
 	original := &ReparsePoint{
-		Target:      "/usr/bin/bash",
+		Target:       "/usr/bin/bash",
 		IsMountPoint: false,
 		IsLxSymlink:  true,
 	}
@@ -39,7 +38,7 @@ func TestLxSymlinkRoundTrip(t *testing.T) {
 func TestWindowsSymlinkNotLx(t *testing.T) {
 	// Test that regular Windows symlinks are not marked as LX
 	original := &ReparsePoint{
-		Target:      `C:\Windows\System32`,
+		Target:       `C:\Windows\System32`,
 		IsMountPoint: false,
 		IsLxSymlink:  false,
 	}