unifdef(1) on FreeBSD
The text a61bea75c1e3, as FreeBSD 4.6.2-RELEASE, FreeBSD 4.6-RELEASE, FreeBSD 4.5-RELEASE, FreeBSD 4.4-RELEASE shipped it.
remove ifdef'ed lines
Flags it lists
-
-D -
-U -
-c -
-iD -
-iU -
-l -
-t