wireshark: fix CLT-only build

Fixes #22663.
Fixes #22971.
ruby-install 0.3.1

### 0.3.1 / 2013-09-23

* Always use the system's `stat` command on OSX (@paul).
* Do not assume homebrew is installed at `/usr/local/bin/brew`.
* Properly quote/expand `$CONFIGURE_OPTS` to prevent incorrect word-splitting
  (@pbrisbin).
* Style changes.

#### ruby

* Download from the new http://cache.ruby-lang.org/ CDN (@hsbt).
* When installing ruby 1.8.x, rubygems-2.1.3 will now be installed.
* Added the MD5 checksum for ruby-2.1.0-preview1.tar.bz2.
* Added the `2.1` and `2.1.0` version aliases for 2.1.0-preview1.

#### rubinius

* Support the new 2.x installation process.
* Added MD5s and versions for `2.1.0` and `2.0.0`.
* Removed support for `2.0.0-rc1`.

Closes #23361.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
go 1.2rc2 (devel)

Update documentation and don't check with go vet. That is now in
go.tools starting in go 1.2. Make a check that go is working by using
`go fmt` and running a smal go program.

Closes #23359.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
serf 1.3.2

Closes #23358.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
serf 1.3.2 bottles.
wireshark: update patch comment
heroku-toolbelt 3.0.1

Closes #23365.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
subversion: update bottles to fix serf linkage.

Closes #23363.
formula: fix git_etc bash_completion handling.
subversion: improve caveats line breaks.
HOMEBREW_GIT_ETC: fix nil etc bug.
tpp 1.3.1 (new formula)

Closes #23311.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
pow: fix installation caveats.

Add the backslashes in the caveats of Pow formula. The backslashes are
necessary otherwise if the user copies the commands and pastes them in
Terminal, the space of "Application Support" breaks the command.

Reverse the order of ln command in order to respect the documentation of
Pow which says that the .pow directory in user home must be a symbolic link
of Hosts directory. See the note of section 2.1
(http://pow.cx/manual.html#section_2.1).

Closes #23366.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Move verbose ENV setup out of brew.rb