bug fix: CDF-2 and CDF-5 allow names start with numbers

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1800 c368ceb8-fd28-0410-a457-e46ee1d7cd4a
use testfile.nc for test outputfile name

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1801 c368ceb8-fd28-0410-a457-e46ee1d7cd4a
borrow tst_names.c from netCDF test program

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1802 c368ceb8-fd28-0410-a457-e46ee1d7cd4a
update files for running tst_names.c

git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1803 c368ceb8-fd28-0410-a457-e46ee1d7cd4a