Debian DLA-250-1 : libclamunrar security update

Upstream published version 0.98.5. This update updates sqeeze-lts to the latest upstream release in line with the approach used for other Debian releases. This update corrects a double-free error that existed within the 'unrarextractnextprepare' function libclamunrariface/unrariface.c when parsin...