Set empty HTTP paths to '/' to avoid malformed requests (#2329)
Set empty HTTP paths to '/' to avoid malformed requests (#2329)

This resolves #1610.
winlinvip/srs,ossrs/srs,ossrs/srs,ossrs/srs,ossrs/srs,winlinvip/srs,winlinvip/srs,ossrs/srs,ossrs/srs,winlinvip/srs,winlinvip/srs,winlinvip/srs