When I type help, the characters aren't echoed to the screen, but backslash commands are:

    $ ./usql
    Type "help" for help.
    
    (not connected)=>     
    You are using usql, ...
    Type:  \copyright for distribution terms
           \? for help with usql commands
           \g or terminate with semicolon ...
           \q to quit
    (not connected)=> \q
    $ 

Is this expected?

Edit: I'm using the binary package on macOS 10.12.6.