gcc/ChangeLog:
* doc/invoke.texi: Add missing dash.
-malign-call -mauto-modify-reg -mbbit-peephole -mno-brcc @gol
-mcase-vector-pcrel -mcompact-casesi -mno-cond-exec -mearly-cbranchsi @gol
-mexpand-adddi -mindexed-loads -mlra -mlra-priority-none @gol
--mlra-priority-compact mlra-priority-noncompact -mmillicode @gol
+-mlra-priority-compact -mlra-priority-noncompact -mmillicode @gol
-mmixed-code -mq-class -mRcq -mRcw -msize-level=@var{level} @gol
-mtune=@var{cpu} -mmultcost=@var{num} -mcode-density-frame @gol
-munalign-prob-threshold=@var{probability} -mmpy-option=@var{multo} @gol