[boost] [ptr_container] Fixed 'reversible_ptr_container.hpp'

From: Markus Schöpflin (markus.schoepflin_at_[hidden])
Date: 2007-11-20 04:12:23

Rev 41178 contained some bogus characters causing major breakage of the 
ptr_container library plus some collateral damage. I just committed a fix 
for this. I hope the author doesn't mind me shooting without asking.

Regards,
Markus