sendmail make distribution error and fix

Hi!

I got this error, when I try to make distribution*:

cd /target/usr/src/etc/sendmail; make distribution
install -o root -g wheel -m 644
/target/usr/src/etc/sendmail/freebsd.mc freebsd.cf /target/etc/mail
install: freebsd.cf: No such file or directory
*** Error code 71

Stop.
make[3]: stopped in /target/usr/src/etc/sendmail
*** Error code 1

Stop.
make[2]: stopped in /target/usr/src/etc
*** Error code 1

Stop.
make[1]: stopped in /target/usr/src
*** Error code 1

Stop.
make: stopped in /target/usr/src

The attached patch fixed the problem.

*:
#!/usr/bin/env csh

set MAKEOBJDIRPREFIX="/target/usr/obj"
set SRC_DIR="/target/usr/src"
set DESTDIR="/target"

cd ${SRC_DIR}

make -j5 buildworld MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}
make -j5 kernel MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}

make installworld DESTDIR=${DESTDIR} MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}
make distribution DESTDIR=${DESTDIR} MAKEOBJDIRPREFIX=${MAKEOBJDIRPREFIX}

cp /etc/make.conf /target/etc/
cp /etc/src.conf /target/etc/
cp /etc/rc.conf /target/etc/