man page of sb2: added description of option -P
man page of sb2: added description of option -P

h113331pp/scratchbox2,ldbox/ldbox,OlegGirko/ldbox,OlegGirko/ldbox,OlegGirko/ldbox,h113331pp/scratchbox2,ldbox/ldbox,OlegGirko/ldbox,ldbox/ldbox,h113331pp/scratchbox2,ldbox/ldbox,OlegGirko/ldbox,h113331pp/scratchbox2,h113331pp/scratchbox2,h113331pp/scratchbox2,ldbox/ldbox,OlegGirko/ldbox,ldbox/ldbox