migrate in rvm-1.0.3

- old
+ new

@@ -5,11 +5,10 @@
 source "$rvm_scripts_path/base"
 
 usage() {
   echo "Usage: rvm migrate from to" >&2
   echo "Moves all gemsets from one ruby to another." >&2
-  exit 1
 }
 
 confirm() {
   printf "$1 (Y/n): "
   local confirmation_response
@@ -104,11 +103,16 @@
 
   echo "Successfully migrated $expanded_source to $expanded_destination"
 
 }
 
-if [[ -z "$1" || "$#" != 2 ]]; then
-  usage
+args=($*)
+source_ruby="${args[0]}"
+destination_ruby="${args[1]}"
+args="$(echo ${args[@]:2}) " # Strip trailing / leading / extra spacing.
+
+if [[ -z "$source_ruby" || -z "$destination_ruby" ]]; then
+  usage ; exit 1
 fi
 
 source_ruby="$1"; shift
 destination_ruby="$1"; shift
 