Create a test for the new mh-format processing available in comp(1).
[mmh] / test / format /
drwxr-xr-x   ..
-rwxr-xr-x 595 test-localmbox
-rwxr-xr-x 686 test-myhost
-rwxr-xr-x 987 test-mymbox
-rwxr-xr-x 782 test-myname