required environment variables have no checks in all.bash

[gopherbot]

by bear42:

1. don't read all of the docs and just run ./all.bash like I did ;)

the attached patch adds some very basic error checking for the three
required environment vars

Attachments:

1. make.bash.patch (1063 bytes)

[gopherbot]

Comment 1 by bear42:

new patch that also checks for GOBIN setup

Attachments:

1. make.bash.patch (1271 bytes)

[rsc]

Comment 2:

This issue was closed by revision 2d70d60.

Status changed to Fixed.

Merged into issue #-.

[gopherbot]

CL https://golang.org/cl/22600 mentions this issue.