go.sys: update package names
Semi-automatic migration from package syscall to package {plan9,windows,unix}.
No builds attempted yet, but this gets a lot of noise behind us so subsequent
CLs will be more concise and easier to follow.
Subsequent CLs will have semantic content.
LGTM=rsc
R=golang-codereviews, rsc
CC=golang-codereviews
https://golang.org/cl/121520043
diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index 94d051d..d8c21a9 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -4,7 +4,7 @@
// Created by cgo -godefs - DO NOT EDIT
// cgo -godefs -- -m64 _const.go
-package syscall
+package unix
const (
AF_ALG = 0x26
