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
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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