From 3d1b788d8ad3b4c407d3c752de15318cf57cf03e Mon Sep 17 00:00:00 2001
From: Trae Robrock <trobrock@gmail.com>
Date: Tue, 8 Nov 2011 12:24:14 -0800
Subject: [PATCH] Fixing the rvm_prompt_info command, now it will not show
 empty parens if no rvm is currently being used

---
 lib/rvm.zsh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/rvm.zsh b/lib/rvm.zsh
index 597be1b3..dbfaf879 100644
--- a/lib/rvm.zsh
+++ b/lib/rvm.zsh
@@ -1,6 +1,10 @@
 # get the name of the branch we are on
 function rvm_prompt_info() {
   ruby_version=$(~/.rvm/bin/rvm-prompt 2> /dev/null) || return
+  if [ -z $ruby_version ]
+  then
+    return
+  fi
   echo "($ruby_version)"
 }