fix warning in UDP test
fix warning in UDP test

DSrcl/memcached,dormando/memcached,EdwardLee03/memcached,msg7086/repcached,mdounin/memcached,dkrotx/memcached-dd,tmharrisonwang/memcached,xiaosl/memcached,EdwardLee03/memcached,msg7086/repcached,bpzhang/memcached,neutronsharc/memcached,mitliucak/memcached,xiaosl/memcached,xiaosl/memcached,romanticode/memcached,mdounin/memcached,dianerdianer/memcached,DSrcl/memcached,neutronsharc/memcached,elfchief/memcached,leedc/memcached,msg7086/repcached,Distrotech/memcached,romanticode/memcached,Danzeer/memcached,tellapart/memcached,Danzeer/memcached,cloudrain21/memcached,emcconville/memcached,dormando/memcached,tellapart/memcached,leverich/memcached-affinity,Distrotech/memcached,surajdharmapuram/memcached,mitliucak/memcached,amyvmiwei/memcached,jeremiahyan/memcached,dormando/memcached,angusfenying/memcached-win64,dustin/memcached,leedc/memcached,rhli/memcached,leverich/memcached-affinity,guikcd/memcached,Dhruva6/memcached,gencer/memcached,emcconville/memcached,13693100472/memcached,ZhangZhenhua/memcached,dkrotx/memcached-dd,dianerdianer/memcached,Dhruva6/memcached,dustin/memcached,samanbarghi/memcached,kamyu104/memcached,dustin/memcached,elfchief/memcached,DigitalAce/memcached,myPublicGit/memcached,memcached/memcached,memcached/memcached,tmharrisonwang/memcached,elfchief/memcached,romanticode/memcached,zaycev/memcached,elfchief/memcached,kamyu104/memcached,elfchief/memcached,myPublicGit/memcached,ZhangZhenhua/memcached,allen8807/memcached-1,jbergstroem/memcached,myPublicGit/memcached,alexandermerritt/memcached,tomykaira/memcached,dormando/memcached,fengshao0907/memcached,tomykaira/memcached,gencer/memcached,Danzeer/memcached,ClearwaterCore/memcached,samanbarghi/memcached,dianerdianer/memcached,sagark/memcached-accel,amyvmiwei/memcached,angusfenying/memcached-win64,bpzhang/memcached,kamyu104/memcached,guikcd/memcached,bpzhang/memcached,surajdharmapuram/memcached,13693100472/memcached,amyvmiwei/memcached,jbergstroem/memcached,mdounin/memcached,gencer/memcached,DigitalAce/memcached,alexandermerritt/memcached,emcconville/memcached,Dhruva6/memcached,tmharrisonwang/memcached,memcached/memcached,williamcheungthu/memcached,EdwardLee03/memcached,williamcheungthu/memcached,memcached/memcached,tellapart/memcached,williamcheungthu/memcached,DSrcl/memcached,samt42/memcached,alexandermerritt/memcached,cloudrain21/memcached,neutronsharc/memcached,ClearwaterCore/memcached,rhli/memcached,13693100472/memcached,mitliucak/memcached,angusfenying/memcached-win64,gencer/memcached,ZhangZhenhua/memcached,ZhangZhenhua/memcached,rmccullagh/memcached,tomykaira/memcached,niaomingjian/memcached,amyvmiwei/memcached,msg7086/repcached,angusfenying/memcached-win64,sagark/memcached-accel,guikcd/memcached,rmccullagh/memcached,samanbarghi/memcached,samt42/memcached,guikcd/memcached,jeremiahyan/memcached,13693100472/memcached,williamcheungthu/memcached,zaycev/memcached,samanbarghi/memcached,neutronsharc/memcached,rmccullagh/memcached,sagark/memcached-accel,jeremiahyan/memcached,cloudrain21/memcached,DSrcl/memcached,rmccullagh/memcached,leedc/memcached,bpzhang/memcached,ClearwaterCore/memcached,zaycev/memcached,jbergstroem/memcached,zaycev/memcached,mitliucak/memcached,rhli/memcached,Distrotech/memcached,dormando/memcached,samt42/memcached,xiaosl/memcached,surajdharmapuram/memcached,dkrotx/memcached-dd,ClearwaterCore/memcached,samt42/memcached,tmharrisonwang/memcached,guikcd/memcached,alexandermerritt/memcached,romanticode/memcached,niaomingjian/memcached,fengshao0907/memcached,jeremiahyan/memcached,niaomingjian/memcached,allen8807/memcached-1,sagark/memcached-accel,Danzeer/memcached,rmccullagh/memcached,allen8807/memcached-1,msg7086/repcached,DigitalAce/memcached,13693100472/memcached,kamyu104/memcached,leedc/memcached,emcconville/memcached,fengshao0907/memcached,cloudrain21/memcached,Dhruva6/memcached,memcached/memcached,fengshao0907/memcached,dianerdianer/memcached,allen8807/memcached-1,EdwardLee03/memcached,tomykaira/memcached,surajdharmapuram/memcached,gencer/memcached,leverich/memcached-affinity,myPublicGit/memcached,rhli/memcached,dkrotx/memcached-dd,sagark/memcached-accel,niaomingjian/memcached