hack/make/.go-autogen: fix "generated code" comment not in correct format
hack/make/.go-autogen: fix "generated code" comment not in correct format

As described in https://golang.org/s/generatedcode, Go has
a formalized format that should be used to indicate that a
file is generated.

Matching that format helps linters to skip generated files;

From https://golang.org/s/generatedcode (https://github.com/golang/go/issues/13560#issuecomment-288457920);

> Generated files are marked by a line of text that matches the regular expression, in Go syntax:
>
> ^// Code generated .* DO NOT EDIT\.$
>
> The `.*` means the tool can put whatever folderol it wants in there, but the comment
> must be a single line and must start with `Code generated` and end with `DO NOT EDIT.`,
> with a period.
>
> The text may appear anywhere in the file.

This patch updates the autogenerated code to match that format.

Signed-off-by: Sebastiaan van Stijn <64b2b6d12bfe4baae7dad3d018f8cbf6b0e7a044@gone.nl>

moul/docker,gnailuy/docker,ibuildthecloud/docker,justincormack/docker,mahak/docker,estesp/docker,Mokolea/docker,gnailuy/docker,bearstech/moby,jimjag/docker,vdemeester/docker,nalind/docker,pradipd/moby,bearstech/moby,paralin/docker,estesp/docker,kojiromike/docker,SvenDowideit/docker,djs55/docker,AkihiroSuda/docker,Mokolea/docker,cpuguy83/docker,trebonian/docker,dims/docker,yosifkit/docker,dims/docker,kojiromike/docker,kojiromike/docker,Mokolea/docker,yosifkit/docker,jimjag/docker,nawawi/docker,ibuildthecloud/docker,mahak/docker,moby/moby,thaJeztah/docker,vdemeester/docker,yosifkit/docker,ibuildthecloud/docker,trebonian/docker,paralin/docker,cpuguy83/docker,konstruktoid/docker-upstream,bearstech/moby,mahak/docker,mahak/docker,moul/docker,flavio/docker,nalind/docker,AkihiroSuda/docker,jimjag/docker,SvenDowideit/docker,estesp/docker,konstruktoid/docker-upstream,konstruktoid/docker-upstream,Mokolea/docker,konstruktoid/docker-1,docker/docker,trebonian/docker,moby/moby,bearstech/moby,flavio/docker,nawawi/docker,AkihiroSuda/docker,jvanz/docker,paralin/docker,Ramzec/docker,jameszhan/docker,flavio/docker,yosifkit/docker,moby/moby,nawawi/docker,konstruktoid/docker-1,moby/moby,vdemeester/docker,jimjag/docker,jvanz/docker,dims/docker,jthelin/docker,djs55/docker,ibuildthecloud/docker,trebonian/docker,justincormack/docker,thaJeztah/docker,konstruktoid/docker-upstream,konstruktoid/docker-1,jameszhan/docker,justincormack/docker,flavio/docker,cpuguy83/docker,moul/docker,ibuildthecloud/docker,gnailuy/docker,AkihiroSuda/docker,pradipd/moby,Ramzec/docker,docker/docker,paralin/docker,nalind/docker,nawawi/docker,Ramzec/docker,jameszhan/docker,thaJeztah/docker,cpuguy83/docker,djs55/docker,Ramzec/docker,SvenDowideit/docker,thaJeztah/docker,jthelin/docker,nalind/docker,moul/docker,jvanz/docker,pradipd/moby,gnailuy/docker,docker/docker