Replace a doubled semi-colon with a single semi-colon, fns.c, for VS6's sake.
src/ChangeLog addition:
2010-09-07 Aidan Kehoe <kehoea@parhasard.net>
* fns.c (Freplace):
Replace an accidental double semi-colon with a single semi-colon,
hopefully fixing Vin's Visual Studio 6 build. (Visual Studio 2005
had no problem with it, oddly.)