Adjust comparison for cds header test.
Adjust comparison for cds header test.

Added a bogus unit to an existing sample CDS format file to test
parsing of cds-formatted units. Adjusted unrelated test which
uses the same file.

mhvk/astropy,StuartLittlefair/astropy,saimn/astropy,MSeifert04/astropy,stargaser/astropy,astropy/astropy,bsipocz/astropy,dhomeier/astropy,MSeifert04/astropy,mhvk/astropy,dhomeier/astropy,larrybradley/astropy,larrybradley/astropy,larrybradley/astropy,bsipocz/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,astropy/astropy,pllim/astropy,saimn/astropy,dhomeier/astropy,saimn/astropy,lpsinger/astropy,pllim/astropy,mhvk/astropy,bsipocz/astropy,astropy/astropy,mhvk/astropy,saimn/astropy,MSeifert04/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,stargaser/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,mhvk/astropy,astropy/astropy,astropy/astropy,pllim/astropy,stargaser/astropy,dhomeier/astropy,larrybradley/astropy,dhomeier/astropy,StuartLittlefair/astropy,pllim/astropy,stargaser/astropy,bsipocz/astropy,lpsinger/astropy,larrybradley/astropy,saimn/astropy,pllim/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,MSeifert04/astropy