criu(8): use bold for options, separate by commas
criu(8): use bold for options, separate by commas

1. Use *bold* for option names.

2. Separate long and short option by a comma and a space.

Signed-off-by: Kir Kolyshkin <c0159612b0ef32139322233232df1a0d189c4b9b@openvz.org>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

tych0/criu,tych0/criu,gablg1/criu,svloyso/criu,eabatalov/criu,KKoukiou/criu-remote,ldu4/criu,KKoukiou/criu-remote,biddyweb/criu,kawamuray/criu,ldu4/criu,gonkulator/criu,rentzsch/criu,fbocharov/criu,kawamuray/criu,fbocharov/criu,kawamuray/criu,efiop/criu,biddyweb/criu,biddyweb/criu,KKoukiou/criu-remote,gablg1/criu,ldu4/criu,eabatalov/criu,marcosnils/criu,gablg1/criu,LK4D4/criu,svloyso/criu,fbocharov/criu,ldu4/criu,KKoukiou/criu-remote,kawamuray/criu,marcosnils/criu,biddyweb/criu,efiop/criu,gablg1/criu,marcosnils/criu,gonkulator/criu,LK4D4/criu,LK4D4/criu,fbocharov/criu,gablg1/criu,AuthenticEshkinKot/criu,gonkulator/criu,marcosnils/criu,efiop/criu,kawamuray/criu,KKoukiou/criu-remote,tych0/criu,svloyso/criu,sdgdsffdsfff/criu,tych0/criu,eabatalov/criu,wtf42/criu,wtf42/criu,tych0/criu,fbocharov/criu,LK4D4/criu,LK4D4/criu,wtf42/criu,tych0/criu,ldu4/criu,fbocharov/criu,svloyso/criu,sdgdsffdsfff/criu,biddyweb/criu,gablg1/criu,rentzsch/criu,sdgdsffdsfff/criu,AuthenticEshkinKot/criu,rentzsch/criu,rentzsch/criu,wtf42/criu,LK4D4/criu,eabatalov/criu,AuthenticEshkinKot/criu,efiop/criu,sdgdsffdsfff/criu,AuthenticEshkinKot/criu,sdgdsffdsfff/criu,gonkulator/criu,wtf42/criu,rentzsch/criu,AuthenticEshkinKot/criu,gonkulator/criu,efiop/criu,gonkulator/criu,eabatalov/criu,eabatalov/criu,svloyso/criu,kawamuray/criu,efiop/criu,marcosnils/criu,KKoukiou/criu-remote,sdgdsffdsfff/criu,rentzsch/criu,ldu4/criu,wtf42/criu,svloyso/criu,AuthenticEshkinKot/criu,marcosnils/criu,biddyweb/criu