inotify.7: munmap() does not generate inotify events

mmap() and msync() were already described as not leading to
inotify events. This patch adds munmap(). I created and executed
a test to verify this.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
README: Explain usage of prefix when installing

Installing the man pages to /usr may not be the preferred option
when working on a system with a packaging system like apt or yum,
where /usr is reserved for packages and /usr/local or /opt is used
for user addons.

README should explain how to install to a path different to /usr.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
locale.5: Document mon_grouping and grouping properly

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
locale.5: Minor tweaks to 's patch

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
locale.7: further details of LOCPATH

Helpful for three purposes, 1) shows the expected naming scheme,
2) shows where to point LOCPATH to, and 3) gives an idea to the
attentive how to use a more generic, location independent
directory with location dependent, more specific ones.

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
locale.7: Clarify that LOCPATH is used by setlocale(3) and newlocale(3)

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