Updated homebrew formula

bash-git-prompt.rb

@@ -2,8 +2,8 @@ require "formula"
 
 class BashGitPrompt < Formula
   homepage "https://github.com/magicmonty/bash-git-prompt"
-  url "https://github.com/magicmonty/bash-git-prompt/archive/2.3.tar.gz"
-  sha1 "a4e692ef33b691724df6ac9582c204d31dbb853a"
+  url "https://github.com/magicmonty/bash-git-prompt/archive/2.3.1.tar.gz"
+  sha1 "c973bd8b86ac332d7310d79f0009844340b5999f"
   head "https://github.com/magicmonty/bash-git-prompt.git"
 
   def install
@@ -17,7 +17,7 @@ class BashGitPrompt < Formula
   def caveats; <<-EOS.undent
     You should add the following to your .bashrc (or equivalent):
       if [ -f "$(brew --prefix)/opt/bash-git-prompt/share/gitprompt.sh" ]; then
-      	GIT_PROMPT_THEME=Default
+        GIT_PROMPT_THEME=Default
         source "$(brew --prefix)/opt/bash-git-prompt/share/gitprompt.sh"
       fi
     EOS