pyenv-virtualenv 20141012

Changes:

 * Fix warnings from `shellcheck` to improve support for POSIX sh
 * Do not allow whitespace in `VIRTUALENV_NAME`
 * Should not persist `PYENV_DEACTIVATE` after automatic deactivation

Closes Homebrew/legacy-homebrew#33115.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>

Formula/pyenv-virtualenv.rb

@@ -2,8 +2,8 @@
 
 class PyenvVirtualenv < Formula
   homepage "https://github.com/yyuu/pyenv-virtualenv"
-  url "https://github.com/yyuu/pyenv-virtualenv/archive/v20140705.tar.gz"
-  sha1 "78e90aee72a783dfd9722c55e2271b08688fb408"
+  url "https://github.com/yyuu/pyenv-virtualenv/archive/v20141012.tar.gz"
+  sha1 "171c547d669eea0f00bd9c8ba75b42b4b8794a79"
 
   head "https://github.com/yyuu/pyenv-virtualenv.git"