Bugfix: prefix set in env no longer carries through to wrappers.

scripts/utility

@@ -375,19 +375,15 @@ __rvm_ensure_has_18_compat_ruby() {
   return 0
 }
 
-# Cleans up temp folders for a given prefix,
+# Cleans up temp folders for a given prefix ($1),
 # typically the current process id.
 __rvm_cleanup_temp_for() {
   result=$? # Capture last command status
 
-  local prefix
-
-  prefix="$1"
-
-  [[ -z "$prefix" ]] && return 1
+  [[ -z "${1:-""}" ]] && return 1
 
   if [[ -d "${rvm_tmp_path:-"$rvm_path/tmp"}/" ]]; then
-    \rm -rf "${rvm_tmp_path:-"$rvm_path/tmp"}/$prefix"* >/dev/null 2>&1
+    \rm -rf "${rvm_tmp_path:-"$rvm_path/tmp"}/$1"* >/dev/null 2>&1
   fi
 
   return $result

scripts/wrapper

@@ -2,7 +2,7 @@
 
 default_flag="$rvm_default_flag"
 # Prevent recursion
-unset rvm_default_flag rvm_wrapper_name
+unset rvm_default_flag rvm_wrapper_name prefix
 
 source "$rvm_path/scripts/base"