build: apply gofmt from golang 1.17

fs/accounting/accounting_other.go

@@ -1,6 +1,7 @@
 // Accounting and limiting reader
 // Non-unix specific functions.
 
+//go:build !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris
 // +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
 
 package accounting

fs/accounting/accounting_unix.go

@@ -1,6 +1,7 @@
 // Accounting and limiting reader
 // Unix specific functions.
 
+//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
 // +build darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package accounting

fs/config/config_read_password.go

@@ -2,6 +2,7 @@
 // See https://github.com/golang/go/issues/14441 - plan9
 //     https://github.com/golang/go/issues/13085 - solaris
 
+//go:build !solaris && !plan9
 // +build !solaris,!plan9
 
 package config

fs/config/config_read_password_unsupported.go

@@ -2,6 +2,7 @@
 // See https://github.com/golang/go/issues/14441 - plan9
 //     https://github.com/golang/go/issues/13085 - solaris
 
+//go:build solaris || plan9
 // +build solaris plan9
 
 package config

fs/config/configfile/configfile_other.go

@@ -1,6 +1,7 @@
 // Read, write and edit the config file
 // Non-unix specific functions.
 
+//go:build !darwin && !dragonfly && !freebsd && !linux && !netbsd && !openbsd && !solaris
 // +build !darwin,!dragonfly,!freebsd,!linux,!netbsd,!openbsd,!solaris
 
 package configfile

fs/config/configfile/configfile_unix.go

@@ -1,6 +1,7 @@
 // Read, write and edit the config file
 // Unix specific functions.
 
+//go:build darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
 // +build darwin dragonfly freebsd linux netbsd openbsd solaris
 
 package configfile

fs/driveletter/driveletter.go

@@ -1,5 +1,6 @@
 // Package driveletter returns whether a name is a valid drive letter
 
+//go:build !windows
 // +build !windows
 
 package driveletter

fs/driveletter/driveletter_windows.go

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

fs/fserrors/enospc_error.go

@@ -1,3 +1,4 @@
+//go:build !plan9
 // +build !plan9
 
 package fserrors

fs/fserrors/enospc_error_notsupported.go

@@ -1,10 +1,11 @@
+//go:build plan9
 // +build plan9
 
 package fserrors
 
-// IsErrNoSpace() on plan9 returns false because 
+// IsErrNoSpace() on plan9 returns false because
 // plan9 does not support syscall.ENOSPC error.
 func IsErrNoSpace(cause error) (isNoSpc bool) {
 	isNoSpc = false
-	return 
+	return
 }

fs/fserrors/retriable_errors.go

@@ -1,3 +1,4 @@
+//go:build !plan9
 // +build !plan9
 
 package fserrors

fs/fserrors/retriable_errors_windows.go

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

fs/fspath/fuzz.go

@@ -1,4 +1,5 @@
-//+build gofuzz
+//go:build gofuzz
+// +build gofuzz
 
 /*
    Fuzz test the Parse function

fs/log/redirect_stderr.go

@@ -1,5 +1,6 @@
 // Log the panic to the log file - for oses which can't do this
 
+//go:build !windows && !darwin && !dragonfly && !freebsd && !linux && !nacl && !netbsd && !openbsd
 // +build !windows,!darwin,!dragonfly,!freebsd,!linux,!nacl,!netbsd,!openbsd
 
 package log

fs/log/redirect_stderr_unix.go

@@ -1,5 +1,6 @@
 // Log the panic under unix to the log file
 
+//go:build !windows && !solaris && !plan9 && !js
 // +build !windows,!solaris,!plan9,!js
 
 package log

fs/log/redirect_stderr_windows.go

@@ -4,6 +4,7 @@
 //
 // https://play.golang.org/p/kLtct7lSUg
 
+//go:build windows
 // +build windows
 
 package log

fs/log/syslog.go

@@ -1,5 +1,6 @@
 // Syslog interface for non-Unix variants only
 
+//go:build windows || nacl || plan9
 // +build windows nacl plan9
 
 package log

fs/log/syslog_unix.go

@@ -1,5 +1,6 @@
 // Syslog interface for Unix variants only
 
+//go:build !windows && !nacl && !plan9
 // +build !windows,!nacl,!plan9
 
 package log

fs/log/systemd.go

@@ -1,5 +1,6 @@
 // Systemd interface for non-Unix variants only
 
+//go:build windows || nacl || plan9
 // +build windows nacl plan9
 
 package log

fs/log/systemd_unix.go

@@ -1,5 +1,6 @@
 // Systemd interface for Unix variants only
 
+//go:build !windows && !nacl && !plan9
 // +build !windows,!nacl,!plan9
 
 package log

fs/rc/js/main.go

@@ -2,6 +2,7 @@
 //
 // This library exports the core rc functionality
 
+//go:build js
 // +build js
 
 package main

fs/rc/js/serve.go

@@ -1,4 +1,5 @@
-//+build none
+//go:build none
+// +build none
 
 package main
 

fs/versioncheck.go

@@ -1,4 +1,5 @@
-//+build !go1.14
+//go:build !go1.14
+// +build !go1.14
 
 package fs