Upgrade uninstall hook after pyenv/pyenv#2432

Author: laggardkernel

etc/pyenv.d/uninstall/envs.bash

@@ -2,6 +2,7 @@ resolve_link() {
   $(type -p greadlink readlink | head -1) "$1"
 }
 
+uninstall_related_virtual_env() {
 if [ -n "${DEFINITION}" ]; then
   if [[ "${DEFINITION}" != "${DEFINITION%/envs/*}" ]]; then
     # Uninstall virtualenv by long name
@@ -28,3 +29,6 @@ if [ -n "${DEFINITION}" ]; then
     fi
   fi
 fi
+}
+
+before_uninstall "uninstall_related_virtual_env"