fix drawing of double-ended arrow
fix drawing of double-ended arrow

freedesktop-unofficial-mirror/libreoffice__libetonyek,LibreOffice/libetonyek,LibreOffice/libetonyek,freedesktop-unofficial-mirror/libreoffice__libetonyek,freedesktop-unofficial-mirror/libreoffice__libetonyek,LibreOffice/libetonyek