Use the same mh_hostname() function from test/common.h in mhsign(1)
[mmh] / test / tests / scan /
drwxr-xr-x   ..
-rw-r--r-- 1145 test-mh-format
-rw-r--r-- 4332 test-scan
-rw-r--r-- 1619 test-scan-multibyte