rvm-install in rvm-0.0.90

- old
+ new

@@ -1,15 +1,16 @@
 #!/usr/bin/env bash
 
 if [[ -f /etc/rvmrc ]] ; then source /etc/rvmrc ; fi
 if [[ -f "$HOME/.rvmrc" ]] ; then source "$HOME/.rvmrc" ; fi
-if [[ -z "$rvm_path" ]] ; then unset rvm_path ; fi
 
 if [[ -z "$rvm_path" ]] ; then
+  unset rvm_path
   if [[ "root" = "$(whoami)" ]] ; then
-    rvm_path="${rvm_path:-/usr/local/rvm}"
+    rvm_path="/usr/local/rvm"
   else
-    rvm_path="${rvm_path:-$HOME/.rvm}"
+    if [[ -d "$HOME/.rvm" ]] ; then rvm_path="$HOME/.rvm" ; fi
+    if [[ -d "/usr/local/bin/rvm" ]] && [[ -f "/usr/local/bin/rvm" ]] ; then rvm_path="${rvm_path:-"/usr/local/rvm"}" ; fi
   fi
 fi
 
 source scripts/initialize
 