Remove redundant property setting on dictionary sources
Remove redundant property setting on dictionary sources

Every file listed as OUTPUT in a call to add_custom_command() is
already automatically marked with the GENERATED property by CMake.

root-mirror/root,root-mirror/root,olifre/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,root-mirror/root,root-mirror/root,karies/root,olifre/root,olifre/root,karies/root,olifre/root,olifre/root,karies/root,karies/root,karies/root,karies/root,karies/root,olifre/root,root-mirror/root,olifre/root,karies/root,olifre/root,root-mirror/root,root-mirror/root