Description of Problem:
While bash processes scriplets in /etc/profile.d in every shell, zsh only does
so when a login shell is started (via /etc/profile).  It should also do so in
/etc/zshenv.

Version-Release number of selected component (if applicable):
zsh-4.0.4-4

How reproducible:
Always.

Steps to reproduce:
1. Create a scriptlet in /etc/profile.d which defines a shell function.
2. Log in using zsh and use "functions" to check that it's defined.
3. Start a subshell and use "functions" to check that it isn't defined.

Actual Results:
The shell function is gone.

Expected Results:
The shell function is should be there.