Use case statement to check for proper result from "mhparam sbackup".
[mmh] / test / format /
drwxr-xr-x   ..
-rwxr-xr-x 594 test-localmbox
-rwxr-xr-x 708 test-myhost
-rwxr-xr-x 1013 test-mymbox
-rwxr-xr-x 2343 test-myname