code review 72850043: misc/zsh: compinit compatible zsh completion file.

misc/zsh: compinit compatible zsh completion file. Autocompletion for the go tool, gofmt, and the gc toolchain can now be loaded automatically if the completion file is named _go and placed in the zsh function path. Fixes issue 5471.

[osandov, 2014-03-12 02:34:23]

Hello golang-codereviews@googlegroups.com, I'd like you to review this change to https://code.google.com/p/go/

[r, 2014-07-14 23:44:16]

We have moved the support for editors out of the repo. See https://code.google.com/p/go-wiki/wiki/IDEsAndTextEditorPlugins

[gobot, 2014-07-14 23:44:36]

R=close (assigned by r@golang.org)