Hello!

I executed the steps:

1 - java -jar tzupdater.jar -f -l https://web.cs.ucla.edu/~eggert/tz/release/2018g/tzdata2018g-rearguard.tar.gz
2 - java -jar tzupdater.jar -V

Result of step 2:

"tzupdater version 2.2.0-b01
JRE tzdata version: tzdata2018g
tzupdater tool would update with tzdata version: tzdata2018g"

It's correct?

My environment:

Linux Ubuntu 64
java version "1.8.0_191"
Java(TM) SE Runtime Environment (build 1.8.0_191-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.191-b12, mixed mode)