silence gcc warning:
pullup.c:681: warning: suggest parentheses around + or - inside shift
pullup.c:682: warning: suggest parentheses around + or - inside shift
approved by Rich
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@15112 b3059339-0415-0410-9bf9-f77b7e298cf2