Added to find_ancillary_file() so that <pathname>.ext will also be checked. This ensures that ancillary DAS files such as 1998-6-avhrr.dat.das will be used properly.
Added to find_ancillary_file() so that <pathname>.ext will also be checked.
This ensures that ancillary DAS files such as 1998-6-avhrr.dat.das will be
used properly.


OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap,OPENDAP/libdap,OPENDAP/libdap,OPENDAP/libdap,OPENDAP/libdap4,OPENDAP/libdap4