Cannot turn off ansi colors (xcodeproj show --no-ansi does not work)

[vbraun]

I always have ansi escape codes in the xcodeproj show output, even when redirecting stdout and using the --no-ansi command line option:

$ xcodeproj --no-ansi show --no-ansi myproject.xcodeproj --no-ansi | grep Targets | od -c
0000000  033   [   3   2   m   T   a   r   g   e   t   s 033   [   0   m
0000020   \n
0000021
$ xcodeproj --version
1.5.4
$ xcodeproj show --help
Usage:

    $ xcodeproj show [PROJECT]

      Shows an overview of a project in a YAML representation.

Options:

    --format=[hash|tree_hash|raw]   YAML output format
    --verbose                       Show more debugging information
    --no-ansi                       Show output without ANSI codes
    --help                          Show help banner of specified command