chewingio.c: Fix typo
chewingio.c: Fix typo

Signed-off-by: Jim Huang <b1c8ad271908ab342ec80ca4c319b7e9f508b5b3@gmail.com>

yan12125/libchewing,PingNote/libchewing,robert501128/libchewing,hiunnhue/libchewing,robert501128/libchewing,PeterDaveHello/libchewing,mangokingTW/libchewing,Chocobo1/libchewing,chewing/libchewing,ShengYenPeng/libchewing,bbyykk/libtaigi,cwlin/libchewing,ShengYenPeng/libchewing,mangokingTW/libchewing,cwlin/libchewing,chewing/libchewing,robert501128/libchewing,PeterDaveHello/libchewing,bbyykk/libtaigi,yan12125/libchewing,cwlin/libchewing,mangokingTW/libchewing,PingNote/libchewing,Chocobo1/libchewing,ShengYenPeng/libchewing,PingNote/libchewing,robert501128/libchewing,chewing/libchewing,yan12125/libchewing,hiunnhue/libchewing,hiunnhue/libchewing,Chocobo1/libchewing,bbyykk/libtaigi,PingNote/libchewing,yan12125/libchewing,hiunnhue/libchewing,PeterDaveHello/libchewing,ShengYenPeng/libchewing,cwlin/libchewing,Chocobo1/libchewing,Chocobo1/libchewing,cwlin/libchewing,mangokingTW/libchewing,chewing/libchewing,bbyykk/libtaigi,PeterDaveHello/libchewing,bbyykk/libtaigi,hiunnhue/libchewing