Fix the following compiler warnings: ass.c:999: warning: unused variable 'i' ass.c:1041: warning: pointer targets in assignment differ in signedness ass.c:1043: warning: pointer targets in assignment differ in signedness
Fix the following compiler warnings:
ass.c:999: warning: unused variable 'i'
ass.c:1041: warning: pointer targets in assignment differ in signedness
ass.c:1043: warning: pointer targets in assignment differ in signedness


git-svn-id: 947b4ff483bb4cc5004120385d99e48ac0944466@20714 b3059339-0415-0410-9bf9-f77b7e298cf2

astiob/libass,grigorig/libass,asimonov-im/libass,sanyaade-g2g-repos/libass,xbmc/libass,torque/libass,MrSmile/libass,Akemi/libass,mwgoldsmith/libass,rhlee/libass,blinkseb/libass,Akemi/libass,ShiftMediaProject/libass,blinkseb/libass,vault/libass,pigoz/libass-ct,libass/libass,Distrotech/libass,Akemi/libass,torque/libass,xbmc/libass,blinkseb/libass,sanyaade-g2g-repos/libass,rhlee/libass,vault/libass,richardpl/libass,richardpl/libass,stps/libass,grigorig/libass,mwgoldsmith/libass,stps/libass,torque/libass,pigoz/libass-ct,stps/libass,tgoyne/libass,Distrotech/libass,tgoyne/libass,richardpl/libass,ShiftMediaProject/libass,MrSmile/libass,libass/libass,tgoyne/libass,Distrotech/libass,sanyaade-g2g-repos/libass,rhlee/libass,asimonov-im/libass,pigoz/libass-ct,astiob/libass,mwgoldsmith/libass