cairo-util: Don't set title string to Pango layout if the title is NULL
If buttons list isn't empty and title is NULL, SEGV is occured in pango_layout_set_text(). This patch fixes this problem.
Signed-off-by: Tomohito Esaki etom@igel.co.jp
If buttons list isn't empty and title is NULL, SEGV is occured in pango_layout_set_text(). This patch fixes this problem.
Signed-off-by: Tomohito Esaki etom@igel.co.jp