key file: Clarify documentation around comments
key file: Clarify documentation around comments

The documentation was not very clear about the handling
of the '#' comment markers. State clearly how these are
handled by the getter and the setter.

https://bugzilla.gnome.org/show_bug.cgi?id=479730

MathieuDuponchelle/glib,johne53/MB3Glib,tamaskenez/glib,cention-sany/glib,Distrotech/glib,tchakabam/glib,endlessm/glib,johne53/MB3Glib,ieei/glib,ieei/glib,ieei/glib,mzabaluev/glib,Distrotech/glib,johne53/MB3Glib,cention-sany/glib,krichter722/glib,endlessm/glib,cention-sany/glib,Distrotech/glib,mzabaluev/glib,johne53/MB3Glib,tchakabam/glib,tchakabam/glib,endlessm/glib,tchakabam/glib,MathieuDuponchelle/glib,johne53/MB3Glib,cention-sany/glib,endlessm/glib,mzabaluev/glib,krichter722/glib,gale320/glib,tchakabam/glib,ieei/glib,cention-sany/glib,krichter722/glib,gale320/glib,ieei/glib,tamaskenez/glib,mzabaluev/glib,Distrotech/glib,krichter722/glib,tamaskenez/glib,gale320/glib,tamaskenez/glib,johne53/MB3Glib,gale320/glib,tamaskenez/glib,endlessm/glib,MathieuDuponchelle/glib,krichter722/glib,MathieuDuponchelle/glib,MathieuDuponchelle/glib,Distrotech/glib,mzabaluev/glib,gale320/glib