I noticed that every second a new line was being written to my /var/log/syslog, so I upgraded the above package to a newer version and the log issue went away. If anyone runs into that, I upgraded to this package:
https://slackware.uk/slackware/slackware64-15.0/patches/packages/bluez-5.64-x86_64-1_slack15.0.txz
I installed it using the following:
upgradepkg --install-new bluez-5.64-x86_64-1_slack15.0.txz