Security Update: subversion

Subversion has received an update to fix multiple security vulnerabilities. In total, there are 5 CVE entries fixed with this version. This update is backported to earlier Slackware version.

Some of the previously introduced package are being rebuilt to fix some missing files and dangling symlinks. They are GCC, Qt, and OpenSSH. Meanwhile, linuxdoc-tools is now upgraded to 0.9.68