[atkmm] Text: Plug memory leaks in get_text_vfunc() and get_selection_vfunc()

[Kjell Ahlstedt <kjellahl src gnome org>]

commit 5b429d3dd8dfaee232331defef71e05a442ebb45
Author: Kjell Ahlstedt <kjellahlstedt gmail com>
Date:   Mon Jun 26 13:42:30 2017 +0200

    Text: Plug memory leaks in get_text_vfunc() and get_selection_vfunc()
    
    These vfuncs shall delete the returned character array after it has been
    copied to a Glib::ustring. Bug 783360

 atk/src/text.hg |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/atk/src/text.hg b/atk/src/text.hg
index 0b74682..357fa32 100644
--- a/atk/src/text.hg
+++ b/atk/src/text.hg
@@ -170,7 +170,7 @@ public:
 
 protected:
 #m4 _CONVERSION(`Glib::ustring', `gchar*', `g_strdup(($3).c_str())')
-
+#m4 _CONVERSION(`gchar*', `Glib::ustring', `Glib::convert_return_gchar_ptr_to_ustring($3)')
   _WRAP_VFUNC(Glib::ustring get_text(int start_offset, int end_offset) const, get_text)
   _WRAP_VFUNC(gunichar get_character_at_offset(int offset) const, get_character_at_offset)