netcdf 4.9.0 tst_netcdf4_4 fails on i686

[opoplawski]

FAIL: tst_netcdf4_4
===================
*** Running extra netcdf-4 tests.
*** running tst_string_data to create test files...
*** Testing strings.
*** creating strings test file tst_string_data.nc...ok.
*** Tests successful!
*** dumping tst_string_data.nc to tst_string_data.cdl...
*** comparing tst_string_data.cdl with ref_tst_string_data.cdl...
*** testing reference file ref_tst_compounds2.nc...
*** testing reference file ref_tst_compounds3.nc...
*** testing reference file ref_tst_compounds4.nc...
37c37
< 		var5:_Filter = "3|2,36|1,2" ;
---
>  		var5:_Filter = "3|2,40|1,2" ;
FAIL tst_netcdf4_4.sh (exit status: 1)

This happens on serial, mpich, and openmpi builds, but only on i686.