fix(_comp_finalize): fix varleak of _comp_local_hook (fixup dc0fee0)

Author: akinomyoga

bash_completion

@@ -854,9 +854,9 @@ _comp_finalize()
     while ((${#FUNCNAME[@]} <= ${_comp_finalize__depth[-1]})); do
         if [[ ${#FUNCNAME[@]} -eq ${_comp_finalize__depth[-1]} && ${FUNCNAME[1]} == "${_comp_finalize__target[-1]}" ]]; then
             # Call finalizer for each command
-            local cmd=${words[0]-}
+            local cmd=${words[0]-} _comp_local_hook
             if [[ $cmd ]]; then
-                local _comp_local_hook=${BASH_COMPLETION_FINALIZE_CMD_HOOKS[$cmd]-}
+                _comp_local_hook=${BASH_COMPLETION_FINALIZE_CMD_HOOKS[$cmd]-}
                 eval -- "$_comp_local_hook"
             fi