rpearce/lneva: Improve logging output, only clean certs if needed
rpearce/lneva: Improve logging output, only clean certs if needed

   * Log when no vips need to be allocated
   * Improve log output when certs dont need to be signed
   * Only clean certs if they needed to be signed in the first place
   * Improve code readability for signing/cleaning certs

tim-group/stackbuilder,tim-group/stackbuilder