improve painting caret when the caret position exceeds the last column.
improve painting caret when the caret position exceeds the last column.

Chandu/poderosa,ttdoda/poderosa,poderosaproject/poderosa,poderosaproject/poderosa,poderosaproject/poderosa,poderosaproject/poderosa,poderosaproject/poderosa,ttdoda/poderosa,Chandu/poderosa,ttdoda/poderosa,Chandu/poderosa,ttdoda/poderosa