778ac302b2
The `G` variable is exported, and not expected to be overwritten externally. Defining it as a function also documents it as a function on https://pkg.go.dev, instead of a variable; https://pkg.go.dev/github.com/containerd/containerd@v1.6.22/log#pkg-variables Note that (while the godoc suggests otherwise) I made `GetLogger` an alias for `G`, as `G` is the most commonly used function (not the other way round), although I don't think there's a performance gain in doing so. Signed-off-by: Sebastiaan van Stijn <github@gone.nl>