test_proxy.c: removed memory leaks
test_proxy.c: removed memory leaks

darcs-hash:20071126220816-65a35-7dc1e8f3ca6481b3fc63d0b69b75803d8037f75a.gz

BelledonneCommunications/sofia-sip,xhook/sofia-sip,xhook/sofia-sip,jart/sofia-sip,jart/sofia-sip,unispeech/sofia-sip,erdincay/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,jart/sofia-sip,xhook/sofia-sip,BelledonneCommunications/sofia-sip,erdincay/sofia-sip,BelledonneCommunications/sofia-sip,unispeech/sofia-sip,xhook/sofia-sip,unispeech/sofia-sip,erdincay/sofia-sip