Fix parseVersion to make it compatible with Termux

[nedisy]

I don't know if it will break anything. But so far it works well on my Termux with openjdk-17 and opengl installed.

My setup:

1. Install Termux
2. Open Termux
3. Run pkg upgrade, then apt-get upgrade
4. Run pkg install openjdk-17, pkg install opengl
5. Download Termux release to my phone and put it in a new folder named hmc
6. Run termux-setup-storage
7. Go to hmc directory, something like cd $HOME/storage/shared/hmc
8. Run java -jar <hmc release name>.jar
9. Install a Minecraft and it's fabric version download <version>, fabric <version>
10. Launch fabric version: versions, launch <version name> -command -lwjgl
11. quit
12. Download HMC-Specific mod to the fabric version
13. Put the mod in $HOME/.minecraft/mods using cp command
14. Re-run and launch the fabric version
15. connect <server address>
16. Done