`--version` exits with an error code

[Flamefire]

Brief problem description

The exit code cannot be used to determine if b2 --version ran successfully

Steps to reproduce the issue

b2 --version; echo $?

Actual behavior summary

b2 exits with exit code 1 indicating a problem

Expected behavior summary

The exit code should be zero such that b2 --version || echo "Failed" can be used.

The use case is code like:

if ! version=$(b2 --version); then
# Handle errors like b2 not available or executable
fi

[paolopas]

it works for me

# b2 --version; echo $?
B2 5.4.2 (OS=LINUX, jobs=4)

0

[Flamefire]

Indeed, fixed by dbbf110 in #437