Update help output
Update help output

Signed-off-by: Peter Lemenkov <2f981fc861bda8c748898150c942841af4296212@gmail.com>

sippy/rtpproxy,synety-jdebp/rtpproxy,hongbinz/rtpproxy,Vocalocity/rtpproxy-pre,synety-jdebp/rtpproxy,jevonearth/rtpproxy,sippy/rtpproxy,dsanders11/rtpproxy,hongbinz/rtpproxy,jevonearth/rtpproxy,synety-jdebp/rtpproxy,jevonearth/rtpproxy,jevonearth/rtpproxy,Vocalocity/rtpproxy-pre,synety-jdebp/rtpproxy,dsanders11/rtpproxy,Vocalocity/rtpproxy-pre,hongbinz/rtpproxy,Vocalocity/rtpproxy-pre,dsanders11/rtpproxy,hongbinz/rtpproxy,sippy/rtpproxy