Fix bug in lb-upgrade-config introduced with configurable paths.
Fix bug in lb-upgrade-config introduced with configurable paths.

As a result of this bug, LDBOX_SHARE_DIR was set to the wrong value
making further work of this script impossible.

Signed-off-by: Oleg Girko <665b39a1e96a9a15fc99f73183af3f04bf8111eb@infoserver.lv>

OlegGirko/ldbox,ldbox/ldbox,ldbox/ldbox,ldbox/ldbox,ldbox/ldbox,ldbox/ldbox,OlegGirko/ldbox,OlegGirko/ldbox,OlegGirko/ldbox,OlegGirko/ldbox,ldbox/ldbox,OlegGirko/ldbox