build: apply gofmt from golang 1.17

lib/atexit/atexit_other.go

@@ -1,4 +1,5 @@
-//+build windows plan9
+//go:build windows || plan9
+// +build windows plan9
 
 package atexit
 

lib/atexit/atexit_unix.go

@@ -1,4 +1,5 @@
-//+build !windows,!plan9
+//go:build !windows && !plan9
+// +build !windows,!plan9
 
 package atexit
 

lib/buildinfo/cgo.go

@@ -1,3 +1,4 @@
+//go:build cgo
 // +build cgo
 
 package buildinfo

lib/buildinfo/osversion.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package buildinfo

lib/encoder/filename/fuzz.go

@@ -1,4 +1,5 @@
-//+build gofuzz
+//go:build gofuzz
+// +build gofuzz
 
 package filename
 

lib/encoder/filename/gentable.go

@@ -1,4 +1,5 @@
-//+build ignore
+//go:build ignore
+// +build ignore
 
 package main
 

lib/encoder/os_darwin.go

@@ -1,4 +1,5 @@
-//+build darwin
+//go:build darwin
+// +build darwin
 
 package encoder
 

lib/encoder/os_other.go

@@ -1,4 +1,5 @@
-//+build !windows,!darwin
+//go:build !windows && !darwin
+// +build !windows,!darwin
 
 package encoder
 

lib/encoder/os_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package encoder
 

lib/file/driveletter_other.go

@@ -1,4 +1,5 @@
-//+build !windows
+//go:build !windows
+// +build !windows
 
 package file
 

lib/file/driveletter_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package file
 

lib/file/file_other.go

@@ -1,4 +1,5 @@
-//+build !windows
+//go:build !windows
+// +build !windows
 
 package file
 

lib/file/file_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package file
 

lib/file/preallocate_other.go

@@ -1,4 +1,5 @@
-//+build !windows,!linux
+//go:build !windows && !linux
+// +build !windows,!linux
 
 package file
 

lib/file/preallocate_unix.go

@@ -1,4 +1,5 @@
-//+build linux
+//go:build linux
+// +build linux
 
 package file
 

lib/file/preallocate_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package file
 

lib/file/unc.go

@@ -1,4 +1,5 @@
-//+build !windows
+//go:build !windows
+// +build !windows
 
 package file
 

lib/file/unc_test.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package file
 

lib/file/unc_windows.go

@@ -1,4 +1,5 @@
-//+build windows
+//go:build windows
+// +build windows
 
 package file
 

lib/israce/israce.go

@@ -1,3 +1,4 @@
+//go:build race
 // +build race
 
 // Package israce reports if the Go race detector is enabled.

lib/israce/norace.go

@@ -1,3 +1,4 @@
+//go:build !race
 // +build !race
 
 // Package israce reports if the Go race detector is enabled.

lib/mmap/mmap_unix.go

@@ -1,6 +1,7 @@
 // Package mmap implements a large block memory allocator using
 // anonymous memory maps.
 
+//go:build !plan9 && !windows && !js
 // +build !plan9,!windows,!js
 
 package mmap

lib/mmap/mmap_unsupported.go

@@ -1,5 +1,6 @@
 // Fallback Alloc and Free for unsupported OSes
 
+//go:build plan9 || js
 // +build plan9 js
 
 package mmap

lib/mmap/mmap_windows.go

@@ -1,6 +1,7 @@
 // Package mmap implements a large block memory allocator using
 // anonymous memory maps.
 
+//go:build windows
 // +build windows
 
 package mmap

lib/plugin/plugin.go

@@ -1,3 +1,4 @@
+//go:build (darwin || linux) && !gccgo
 // +build darwin linux
 // +build !gccgo
 

lib/terminal/hidden_other.go

@@ -1,3 +1,4 @@
+//go:build !windows
 // +build !windows
 
 package terminal

lib/terminal/hidden_windows.go

@@ -1,3 +1,4 @@
+//go:build windows
 // +build windows
 
 package terminal

lib/terminal/terminal_normal.go

@@ -1,4 +1,5 @@
-//+build !js
+//go:build !js
+// +build !js
 
 package terminal
 

lib/terminal/terminal_unsupported.go

@@ -1,4 +1,5 @@
-//+build js
+//go:build js
+// +build js
 
 package terminal