add chruby info to gallois theme

themes/gallois.zsh-theme

@@ -18,7 +18,11 @@ else
   if which rbenv &> /dev/null; then
     RPS1='$(git_custom_status)%{$fg[red]%}[`rbenv version | sed -e "s/ (set.*$//"`]%{$reset_color%} $EPS1'
   else
-    RPS1='$(git_custom_status) $EPS1'
+    if which chruby_prompt_info &> /dev/null; then
+      RPS1='$(git_custom_status)%{$fg[red]%}[`chruby_prompt_info`]%{$reset_color%} $EPS1'
+    else
+      RPS1='$(git_custom_status) $EPS1'
+    fi
   fi
 fi