[gimp] app: the preedit_end mark must be created with right gravity.

[Jehan Pagès <jehanp src gnome org>]

commit bea4b5e4db4e2795d7836d5d1e084292eb5caffe
Author: Jehan <jehan girinstud io>
Date:   Sun Jun 5 23:09:47 2016 +0200

    app: the preedit_end mark must be created with right gravity.
    
    With left gravity, the mark is moved back 1 character to the left of the
    cursor, whereas with right gravity, it is right after newly-inserted
    text. This resulted sometimes into non-deleted preedit characters.
    I don't understand all the subtleties since the problem only occurred
    for the first character of a text layer, at least in my tests.
    Anyway now it should be good.

 app/tools/gimptexttool-editor.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/app/tools/gimptexttool-editor.c b/app/tools/gimptexttool-editor.c
index 4a0e374..bb05162 100644
--- a/app/tools/gimptexttool-editor.c
+++ b/app/tools/gimptexttool-editor.c
@@ -1511,7 +1511,7 @@ gimp_text_tool_im_preedit_changed (GtkIMContext *context,
                                         gtk_text_buffer_get_insert (buffer));
       text_tool->preedit_end = gtk_text_buffer_create_mark (buffer,
                                                             "preedit-end",
-                                                            &iter, TRUE);
+                                                            &iter, FALSE);
 
       /* Move the cursor to the expected location. */
       gtk_text_buffer_get_iter_at_mark (buffer, &iter, text_tool->preedit_start);