Add details to inf_like deprecation message
Add details to inf_like deprecation message

Co-authored-by: Adrian Price-Whelan <3738087e476317196ac2db7cf211c8325d8d8040@gmail.com>
pllim/astropy,larrybradley/astropy,mhvk/astropy,astropy/astropy,pllim/astropy,astropy/astropy,lpsinger/astropy,saimn/astropy,StuartLittlefair/astropy,larrybradley/astropy,astropy/astropy,pllim/astropy,pllim/astropy,larrybradley/astropy,mhvk/astropy,StuartLittlefair/astropy,lpsinger/astropy,StuartLittlefair/astropy,mhvk/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,mhvk/astropy,lpsinger/astropy,saimn/astropy,saimn/astropy,saimn/astropy,lpsinger/astropy,astropy/astropy,larrybradley/astropy,larrybradley/astropy,mhvk/astropy,saimn/astropy,lpsinger/astropy,pllim/astropy,astropy/astropy