add a missing bounds-check in the erase-in-row function
add a missing bounds-check in the erase-in-row function

saitoha/vte-sixel,flaxandteal/gasket-vte,rvu95/vte,aligo/vte,pjm0616/vte,thestinger/vte-ng,asivokon/vte-fx,rvu95/vte,gloob/vte-copy,pjm0616/vte,asivokon/vte-fx,aligo/vte,flaxandteal/gasket-vte,rvu95/vte,asivokon/vte-fx,jessevdk/vte,thestinger/vte-ng,aligo/vte,jessevdk/vte,thestinger/vte-ng,flaxandteal/gasket-vte,asivokon/vte-fx,saitoha/vte-sixel,gloob/vte-copy,flaxandteal/gasket-vte,saitoha/vte-sixel,jessevdk/vte,rvu95/vte,jessevdk/vte,pjm0616/vte,gloob/vte-copy