remove bashism
remove bashism

Change-Id: I83bdb1c73bda571182f1f8715f501b547ab4ab24

LibreOffice/libfreehand,LibreOffice/libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand,LibreOffice/libfreehand,freedesktop-unofficial-mirror/libreoffice__libfreehand,LibreOffice/libfreehand