[ET Trac] [Einstein Toolkit] #1575: Declare cctkGH as "const cGH*"

#1575: Declare cctkGH as "const cGH*" -------------------------+-------------------------------------------------- Reporter: eschnett | Owner: Type: enhancement | Status: new Priority: major | Milestone: Component: Cactus | Version: development version Keywords: | -------------------------+-------------------------------------------------- cctkGH is declared as "const cGH*" in several places, but DECLARE_CCTK_ARGUMENTS still declares it only as "cGH*". This should be changed.

I checked, and some thorns need updating to deal with this. I propose to make this change after the release.