[vte] widget: Fix an off-by-one in TAB/CJK cleanup on deleting a character

[Egmont Koblinger <egmontkob src gnome org>]

commit b9dad4a2d5515c8facf5b64f1a0b0cd43da839ca
Author: Egmont Koblinger <egmont gmail com>
Date:   Tue Jun 17 19:24:31 2014 +0200

    widget: Fix an off-by-one in TAB/CJK cleanup on deleting a character
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731788

 src/vteseq.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/vteseq.c b/src/vteseq.c
index aff32eb..6c69614 100644
--- a/src/vteseq.c
+++ b/src/vteseq.c
@@ -918,7 +918,7 @@ vte_sequence_handler_cursor_back_tab (VteTerminal *terminal, GValueArray *params
        terminal->pvt->screen->cursor_current.col = newcol;
 }
 
-/* Clear from the cursor position to the beginning of the line. */
+/* Clear from the cursor position (inclusive!) to the beginning of the line. */
 static void
 _vte_sequence_handler_cb (VteTerminal *terminal, GValueArray *params)
 {
@@ -931,7 +931,7 @@ _vte_sequence_handler_cb (VteTerminal *terminal, GValueArray *params)
        /* Get the data for the row which the cursor points to. */
        rowdata = _vte_terminal_ensure_row(terminal);
         /* Clean up Tab/CJK fragments. */
-        _vte_terminal_cleanup_fragments (terminal, 0, screen->cursor_current.col);
+        _vte_terminal_cleanup_fragments (terminal, 0, screen->cursor_current.col + 1);
        /* Clear the data up to the current column with the default
         * attributes.  If there is no such character cell, we need
         * to add one. */