rvm-install in rvm-0.0.41

- old
+ new
@@ -134,10 +134,10 @@
 
   if [ ! -z "$rvm_apt_get_binary" ] ; then
     echo -e "\033[0;33m <w> \033[0mFor jRuby (if you wish to use it) you will need:"
     echo -e "\033[0;32m <i> \033[0msudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk"
     echo -e "\033[0;33m <w> \033[0mFor ree (if you wish to use it) you will need:"
-    echo -e "\033[0;32m <i> \033[0msudo apt-get install libreadline5-dev libssl-dev "
+    echo -e "\033[0;32m <i> \033[0msudo apt-get install libreadline5-dev libssl-dev bison"
 
   elif [ ! -z "$rvm_emerge_binary" ] ; then
     echo -e "\033[0;33m <w> \033[0mFor jRuby (if you wish to use it) you will need:"
     echo -e "\033[0;32m <i> \033[0msudo emerge dev-java/sun-jdk dev-java/sun-jre-bin"
 