code: func resolvePackageName(packageName string, kernelRelease string) string {
  	packageName = strings.Replace(packageName, "${KERNEL_RELEASE}", kernelRelease, -1)
  	return packageName
  }
docs: // resolvePackageName substitutes the variables in the packageName with the
  // local information.
  // E.g., "linux-headers-${KERNEL_RELEASE}" -> "linux-headers-4.4.0-75-generic".