syslog.2: Rework introductory paragraph

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: Rework text describing loglevels

The kernel header file mentioned in the discussion of the KERN_*
constants has morphed and is no longer exported inside glibc.
And the definitions of the constants themselves changed subtly
with kernel commit 04d2c8c83d0e3ac5f78aeede51babb3236200112.
So, rewrite the description of the constants to be a bit more
abstract.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: Minor wording/grammar fixes

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
proc.5: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
proc.5: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
proc.5: Rewrite /proc/sys/kernel/printk description

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: grfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: srcfix: Update copyright

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: Update SYSLOG_ACTION_CONSOLE_OFF + SYSLOG_ACTION_CONSOLE_ON description

Details changed in Linux 2.6.32

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
proc.5: Replace /proc/sys/kernel/printk discussion with reference to syslog(2)

It makes more sense to have the /proc/sys/kernel/printk with
the related material in syslog(2).

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
syslog.2: Rewrite parts of the page, and import /proc/sys/kernel/printk

* Move /proc/sys/kernel/printk from proc(5) to this page,
  and correct various details in the discussion of that file.
* Rewrite and correct various other details on the page.
* Clean out some crufty text.
* Miscellaneous minor fixes.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
shmop.2: Explain SHMLBA in much more detail

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
iconv.1, localedef.1, iconvconfig.8: tfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
charmap.5: Various minor updates and improvements

- more precise title
- extend description a bit
- document previously omitted WIDTH_DEFAULT

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
unicode.7: Minor formatting fixes

There's no need really to boldface names of standards and
character sets.

Reported-by: Marko Myllynen <myllynen@redhat.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
unicode.7: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
unicode.7: wfix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
unicode.7: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
utf-8.7: Minor formatting fixes

There's no need really to boldface names of standards and
character sets.

Reported-by: Marko Myllynen <myllynen@redhat.com>

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
unicode.7: ffix

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>