- Avoid messages on deleted cache directories bewlow /var/cache/man/
that is tag them as %ghost (bnc#882030)

- Update to version 2.6.6
- Fixes since 2.6.3:
* man(1) and catman(8) now document the default section list set at
configure time.
* Build fixes for Automake 1.13.
* man-db 2.6.0 arranged to search the full manpath when expanding
.so directives in manual pages (so that ".so name.1" works as well
as ".so man1/name.1"), but this incorrectly did not take effect
for manual pages that consist only of a .so directive. This is
now fixed.
- Improvements since 2.6.3:
* The MANLESS environment variable is now treated as if it were a
default value for the -r option to man: occurrences of the text
"$MAN_PN" are expanded, and explicitly using the -r option
overrides the default.
* The (unfortunately still hardcoded) maximum length for paths to
manual page hierarchies in the configuration file is now 511
characters rather than 49.
* MANPATH entries now undergo glob(7)-style wildcard expansion,
allowing entries such as "/opt/*/man".
- Fixes since 2.6.4:
* man's --warnings option works again on systems with versions of
groff that support it (broken in 2.6.4).
* man automatically falls back to C.UTF-8 and then en_GB.UTF-8 if
trying to find a UTF-8 locale on a system without
/usr/share/i18n/SUPPORTED.
- Fixes since 2.6.5: