If k8s label starts or ends with a non alphanumeric char, it is
ignored. This new split method cuts labels from the last alphanum
characters and adds a control character to the beginning of the next
chunk. The entity that uses these labels needs to then remove the
control character before concatenating the chunks.
Co-authored-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
Signed-off-by: Tuomas Katila <tuomas.katila@intel.com>
