gresource: Clarify error docs for g_resource_enumerate_children()
gresource: Clarify error docs for g_resource_enumerate_children()

Document that it returns G_RESOURCE_ERROR_NOT_FOUND if the path doesn’t
exist.

endlessm/glib,tamaskenez/glib,Distrotech/glib,johne53/MB3Glib,gale320/glib,mzabaluev/glib,gale320/glib,mzabaluev/glib,ieei/glib,Distrotech/glib,mzabaluev/glib,endlessm/glib,MathieuDuponchelle/glib,cention-sany/glib,mzabaluev/glib,gale320/glib,tamaskenez/glib,tchakabam/glib,ieei/glib,tchakabam/glib,MathieuDuponchelle/glib,tchakabam/glib,gale320/glib,endlessm/glib,MathieuDuponchelle/glib,Distrotech/glib,tamaskenez/glib,ieei/glib,cention-sany/glib,ieei/glib,ieei/glib,cention-sany/glib,endlessm/glib,endlessm/glib,tamaskenez/glib,tchakabam/glib,gale320/glib,johne53/MB3Glib,johne53/MB3Glib,tchakabam/glib,tamaskenez/glib,cention-sany/glib,MathieuDuponchelle/glib,johne53/MB3Glib,johne53/MB3Glib,Distrotech/glib,Distrotech/glib,MathieuDuponchelle/glib,cention-sany/glib,johne53/MB3Glib,mzabaluev/glib