Makefile had a template for cli/config-generated.go embedded inside it.
There is already a templating mechanism for .in files. Using a .in file
is cleaner since it avoids make's awkward interaction with shell
escaping and line splitting.
This patch moves the template into cli/config-generated.go.in and reuses
the existing .in file templating mechanism. Only the PKGRUNDIR variable
needs to be added.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>