chore: import upstream snapshot with attribution

sendmail/config-open-linux

@@ -0,0 +1,33 @@
+sendmail_cf=/etc/sendmail.cf
+sendmail_features=/usr/share/sendmail/cf
+sendmail_mc=/usr/share/sendmail/cf/cf/generic-openlinux.mc
+sendmail_pid=/var/run/sendmail.pid
+makemap_path=makemap
+sendmail_command=/etc/rc.d/init.d/mta start
+sendmail_stop_command=/etc/rc.d/init.d/mta stop
+sendmail_path=/usr/lib/sendmail
+mail_dir=/var/spool/mail
+perpage=20
+sort_mode=0
+wrap_width=80
+order_mail=0
+smrsh_dir=/etc/smrsh
+track_read=0
+show_to=0
+max_records=200
+top_buttons=1
+mail_file=mbox
+mail_style=0
+mailq_show=Date,From,To,Size,Status
+index_min=1000000
+fwd_mode=0
+mailq_sort=0
+mailq_count=0
+delete_warn=1
+mailq_sort=0
+columns=2
+show_cmts=0
+prefix_cmts=0
+
+mail_type=0
+delete_confirm=1