version info prints to stderr, not stdout

[planet36]

Version information is printed to stderr. Please consider printing it to stdout instead.

https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html
GNU Coding Standards: --version

The standard --version option should direct the program to print information about its name, version, origin and legal status, all on standard output, and then exit successfully.

[Cyan4973]

Thanks for pointing that out @planet36 ,
this is now fixed in dev branch, and will be part of next release.