Switch to dynamic allocation in tag_evalsub
Switch to dynamic allocation in tag_evalsub

This fix #1. Switch to dynamic allocation was already done in all other
parts
but this one was left-over.

yanqingmen/Wapiti,yanqingmen/Wapiti,yanqingmen/Wapiti,Jekub/Wapiti,Jekub/Wapiti,yanqingmen/Wapiti,yanqingmen/Wapiti