Import sendmail-8.9.2 onto vendor branch (update from 8.9.1)

Obtained from: ftp.sendamil.org

I obviously cannot read. I misread the ifdef in the Makefile - DONT_FSYNC
was not on by default.. Back previous change out.

Invert the sense of the -s flag (local addition). Instead of compiling
in the behavior via the previously default #define DONT_FSYNC, use the
-s flag to turn the fsync() behavior on. This can be co

Invert the sense of the -s flag (local addition). Instead of compiling
in the behavior via the previously default #define DONT_FSYNC, use the
-s flag to turn the fsync() behavior on. This can be configured in
sendmail.cf without recompiling mail.local.

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Copy original revs 1.2,1.3 - nofsync/nobiff support, usage update.

Copy respective revisions from usr.sbin/sendmail/*/* - use -1 with getopt.

Import sendmail-8.9.1 (slightly trimmed) onto a fresh branch under
src/contrib as per various discussions. I will copy across our changes
and then point the Makefiles across once the dust has settle

Import sendmail-8.9.1 (slightly trimmed) onto a fresh branch under
src/contrib as per various discussions. I will copy across our changes
and then point the Makefiles across once the dust has settled..

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This commit was generated by cvs2svn to compensate for changes in r38032,
which included commits to RCS files with non-trunk default branches.