fix "error C2065: 'ret' : undeclared identifier"
fix "error C2065: 'ret' : undeclared identifier"

mangokingTW/libchewing,Chocobo1/libchewing,robert501128/libchewing,Chocobo1/libchewing,PeterDaveHello/libchewing,simonfork/libchewing,mangokingTW/libchewing,kito-cheng/libchewing,chewing/libchewing,bbyykk/libtaigi,chewing/libchewing,Chocobo1/libchewing,PeterDaveHello/libchewing,PingNote/libchewing,robert501128/libchewing,simonfork/libchewing,dimotsai/libchewing,hiunnhue/libchewing,simonfork/libchewing,robert501128/libchewing,yan12125/libchewing,kito-cheng/libchewing,yan12125/libchewing,hiunnhue/libchewing,bbyykk/libtaigi,hiunnhue/libchewing,chewing/libchewing,cwlin/libchewing,kito-cheng/libchewing,cwlin/libchewing,dimotsai/libchewing,cwlin/libchewing,cwlin/libchewing,cwlin/libchewing,simonfork/libchewing,kito-cheng/libchewing,PingNote/libchewing,PeterDaveHello/libchewing,PingNote/libchewing,Chocobo1/libchewing,yan12125/libchewing,chewing/libchewing,bbyykk/libtaigi,yan12125/libchewing,ShengYenPeng/libchewing,PeterDaveHello/libchewing,ShengYenPeng/libchewing,dimotsai/libchewing,mangokingTW/libchewing,ShengYenPeng/libchewing,Chocobo1/libchewing,mangokingTW/libchewing,dimotsai/libchewing,hiunnhue/libchewing,ShengYenPeng/libchewing,bbyykk/libtaigi,PingNote/libchewing,hiunnhue/libchewing,robert501128/libchewing,bbyykk/libtaigi