Recommended update for permissions

This update for permissions fixes the following issues:

- Allow setuid root for start-suid tool of singularity (group only) bsc#1028304
- Allow setuid root for authbind binary (bsc#1111251)
- A incorrect error message was adjusted (bsc#1047247 bsc#1097665)
- Make btmp root:utmp (bsc#1050467)

This update was imported from the SUSE:SLE-12-SP2:Update update project.

Fixed bugs
bnc#1028304
AUDIT-0: singularity HPC container management
bnc#1111251
AUDIT-0: authbind: unauthorized files in permissions.d
bnc#1047247
chkstat tool can be tricked into trying to interpret the shell environment as a permissions file
bnc#1050467
running chkstat /etc/permissions gives message that /var/log/btmp has incorrect permissions
bnc#1097665
chkstat prints wrong filename or environment content in case of malformed permissions file
Selected Binaries
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