Properly handle drain_repeat argument, it's range is from 1 and up.
Properly handle drain_repeat argument, it's range is from 1 and up.

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