This update for libdlm fixes the following issues:

- Add dependency relationship between 'libdlm' and 'dlm-kmp'. (bsc#1121380)
- Add notes in 'dlm.conf' man page. (bsc#1175812)

This update was imported from the SUSE:SLE-15:Update update project.
This update was imported from the openSUSE:Leap:15.1:Update update project.