fix off-by-one in erase_row_backward

fixes behavior of CSI 1 J and CSI 1 K (which are not particularly
commonly used, which is why this was missed before)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/grid.rs b/src/grid.rs
index 7e7b9ed..e6098a9 100644
--- a/src/grid.rs
+++ b/src/grid.rs
@@ -174,7 +174,7 @@ impl Grid {
     pub fn erase_row_backward(&mut self) {
         let pos = self.pos;
         let row = self.current_row_mut();
-        for cell in row.cells_mut().take(pos.col as usize) {
+        for cell in row.cells_mut().take(pos.col as usize + 1) {
             *cell = crate::cell::Cell::default();
         }
     }