[Dovecot] Default sendmail_path value

[Joseph Tam]

It appears the documentation of this parameter is inconsistent with the
documentation:

  	> grep -nF /sendmail `gfind src -type f`
  	src/lib-lda/lda-settings.c:41:  .sendmail_path = "/usr/sbin/sendmail",
  	src/config/all-settings.c:732:  .sendmail_path = "/usr/sbin/sendmail",

  	(and doc/example-config/conf.d/15-lda.conf is also consistent with
 	this)

but the documentations states

  	http://wiki2.dovecot.org/LDA

  	sendmail_path is used to send mails. Note that the default is
  	/usr/lib/sendmail, which doesn't necessarily work the same as
  	/usr/sbin/sendmail.

I don't know which ought to be changed though.

Joseph Tam <jtam.home at gmail.com>