Fix the fix to WCSLIB 7.6
Fix the fix to WCSLIB 7.6

pllim/astropy,astropy/astropy,aleksandr-bakanov/astropy,astropy/astropy,aleksandr-bakanov/astropy,saimn/astropy,lpsinger/astropy,mhvk/astropy,mhvk/astropy,StuartLittlefair/astropy,pllim/astropy,astropy/astropy,saimn/astropy,larrybradley/astropy,larrybradley/astropy,StuartLittlefair/astropy,astropy/astropy,saimn/astropy,pllim/astropy,saimn/astropy,lpsinger/astropy,lpsinger/astropy,larrybradley/astropy,mhvk/astropy,lpsinger/astropy,aleksandr-bakanov/astropy,saimn/astropy,mhvk/astropy,larrybradley/astropy,pllim/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,astropy/astropy,pllim/astropy,lpsinger/astropy,mhvk/astropy,larrybradley/astropy,aleksandr-bakanov/astropy