psm: Update "struct synapticshw" in psm(4) man page

This structure was updated in r255153 and r255154.

PR:		kern/170834
Approved by:	re (hrs)
Pass the number of supported vectors to pci_emul_add_msicap() and
not the actual PCI BAR number.

Reviewed by:	neel
Approved by:	re@ (blanket)
Fix a typo when accounting for tx_broadcast statistics.

Submitted by:	Paul A. Patience <paul-a patience polymtl ca>
MFC after:	2 weeks
Approved by:	re (hrs)
share/i18n: Fix installworld with read-only obj.

Since iconv was enabled (r254273, August 13), it has been impossible to
installworld using a read-only obj tree. This is common with NFS. Parts of
share/i18n unconditionally rebuild files like mapper.dir during
installation.

This patch ensures the files like mapper.dir are not rewritten with the same
contents.

Tested by:	joel
Approved by:	re (hrs)
Remove description "ifconfig_IF_aliasN is deprecated".  While this
sentence was added in 2005, many users still need it.

Approved by:	re (gjb)
PR:		docs/162354
Fix parsing lines of ifconfig output which include \t in the case of
inet and inet6.

Approved by:	re (delphij)
- Fix pidfile handling in sendmail_msp_queue.  The pidfile was ignored
  and multiple instances were invoked by start/stop cycles.

- Remove redundant start_cmd rewrite.

Approved by:	re (gjb)
Tested by:	jmg
Add EXAMPLES section to explain the format of fstab(5).

Approved by:	re (marius)
Reviewed by:	wblock