Missing show version

[MrUnXBitz]

when i try to help for gopoststuff

miss -V for version, that show the version actually installed

can u implemented this

thanks
ps
if possible put this also when digit
./GoPostStuff --help

before the option cmd

[twiddern]

Also here F4n4t made something with version print: https://github.com/F4n4t/GoPostStuff