Fix potential strcat overflow found by Coverity in CI test (#1661674).

Fix TTL handling on DNS lookups (#1661674).

Fix testsuite for rhel-8 (#1681963).

Escape macros in %changelog

Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild

Switch to %ldconfig_scriptlets

Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Binutils_Mass_Rebuild

Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild

Include sys/types.h in keyutils.h.
The dns resolver needs limits.h.
Overhaul of all manual pages.
Some manual pages moved to Linux man-pages project.
Add Diffie-Helman keyctl function.

Pass ldflags into the build so hardening works

Fix license handling

Add manpages for get_persistent.
Fix memory leaks in keyctl_describe/read/get_security_alloc().
Use keyctl_describe_alloc in dump_key_tree_aux rather than open coding it.
Exit rather than returning from act_xxx() functions.
Fix memory leak in dump_key_tree_aux.
Only get the groups list if we need it.
Don't trust sscanf's %n argument.
Use the correct path macros in the specfile.
Avoid use realloc when the memory has no content.
Fix a bunch of issues in key.dns_resolver.
Fix command table searching in keyctl utility.
Fix a typo in the permissions mask constants.
Improve the keyctl_read manpage.
Add man7 pages describing various keyrings concepts.

New lib symbols should go in a new library minor version.

Provide a utility function to find a key by type and name.
Allow keyctl commands to take a type+name arg instead of a key-id arg.
Add per-UID get_persistent keyring function.

Fix the request-key.conf.5 manpage.
Fix the max depth of key tree dump (keyctl show).
The input buffer size for keyctl padd and pinstantiate should be larger.
Add keyctl_invalidate.3 manpage.

Fix a Makefile error.