Log Message:
Remove check for getprogname, setprogname and fgetln, consistent with
jlam's last change, since we use libnbcompat.  (If we left these checks in,
configure would test for them, find them and set HAVE_GETPROGNAME, subsequently
breaking 'getprogname', as nbcompat.h wouldn't work since HAVE_GETPROGNAME
is then defined.)