Zombie Pigmen with no swords

Put the summary of the bug you're having here
Zombie Pigmen do not have swords in their hands.
What I expected to happen was...:
For them to have swords!
Describe what you thought should happen here
^^

What actually happened was...:
^^
Describe what happened here
^^

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ...
3. ...