Bug#493411: fix for 493411 (sysfence FTBFS with dash)

[peter green <plugwash@p10link.net>]

tags 493411 +patch
thanks

replace the parseopt= and sys= lines near the top of the makefile with 
the following to fix this bug

parseopt=parseopt/confread.o parseopt/lex.o parseopt/parse.o
sys=sys/exit.o sys/xalloc.o sys/log.o sys/communication.o 
sys/sighandlers.o sys/processtitle.o sys/users.o