pmproxy: plug mem leak in redisfmt
pmproxy: plug mem leak in redisfmt

free sds result from recursive call to redisfmt()

adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp,adfernandes/pcp