lx path overrides original $PATH

[Freed-Wu]

$ lx path
export LUA_PATH=...
export LUA_CPATH=...
export PATH='/dev/shm/demo/.lux/5.3/bin';
# expect
export PATH="/dev/shm/demo/.lux/5.3/bin:$PATH";

[mrcjkb]

This is the expected behaviour.
You can use lx path --prepend to keep the original paths.