[PATCH] Revert r221183 to unbreak test-suite on OpenBSD / Bitrig

[Rafael Espíndola]

> The question doesn't make any sense. LD_PRELOAD cannot be empty.
>

It works on linux and given that the freebsd bots didn't explode I
assume it works there too.

The manual page says

A  list of additional, user-specified, ELF shared libraries to be
loaded before all others.  The items of the list can be separated by
spaces or colons.

so "" is just an empty list.

Cheers,
Rafael