Remove $FreeBSD$: two-line nroff pattern

Remove /^\.\\"\n\.\\"\s*\$FreeBSD\$$\n/

xlocale(3): Link man pages

- provide various missing MLINKS for library functions
- update various SEE ALSO section to include the
new linked manual pages
- add various definitions of new functions like isideogram_l(3)
- document COMPATIBILITY for some functions
- bump man page dates

Reviewed by: gbe, bcr
MFC after: 1 week
Pull Request: https://github.com/freebsd/freebsd-src/pull/621
Differential Revision: https://reviews.freebsd.org/D37203

A new jail(8) with a configuration file, to replace the work currently done
by /etc/rc.d/jail.

Create the altix project branch. The altix project will add support
for the SGI Altix 350 to FreeBSD/ia64. The hardware used for porting
is a two-module system, consisting of a base compute module and a
CPU expansion module. SGI's NUMAFlex architecture can be an excellent
platform to test CPU affinity and NUMA-aware features in FreeBSD.

Let the armchair generals handle this one.

Document the need for a cast when passing a char to a ctype function.

MFC after: 2 weeks

- Import the HEAD csup code which is the basis for the cvsmode work.

Sort SEE ALSO references (in dictionary order, ignoring case).

Add basic manual pages for isideogram(), isphonogram(), isrune()
and isspecial().