memcached/tests.py: wait for memcached process before proceeding
memcached/tests.py: wait for memcached process before proceeding

To ensure that the old process is no longer running when the new one
is started.

linearregression/seastar,linearregression/seastar,asias/scylla,norcimo5/seastar,justintung/scylla,kangkot/scylla,raphaelsc/seastar,duarten/scylla,kjniemi/scylla,raphaelsc/scylla,tempbottle/scylla,aruanruan/scylla,raphaelsc/seastar,chunshengster/seastar,scylladb/scylla,xtao/seastar,mixja/seastar,rentongzhang/scylla,glommer/scylla,bowlofstew/scylla,acbellini/scylla,scylladb/scylla-seastar,wildinto/scylla,leejir/seastar,xtao/seastar,capturePointer/scylla,joerg84/seastar,slivne/seastar,avikivity/scylla,gwicke/scylla,koolhazz/seastar,scylladb/scylla,printedheart/seastar,leejir/seastar,bzero/seastar,senseb/scylla,victorbriz/scylla,stamhe/seastar,scylladb/seastar,scylladb/seastar,raphaelsc/scylla,wildinto/scylla,sjperkins/seastar,flashbuckets/seastar,printedheart/seastar,joerg84/seastar,syuu1228/seastar,tempbottle/seastar,phonkee/scylla,stamhe/seastar,mixja/seastar,guiquanz/scylla,sjperkins/seastar,anzihenry/seastar,stamhe/scylla,scylladb/scylla-seastar,duarten/scylla,kjniemi/seastar,shyamalschandra/seastar,linearregression/seastar,linearregression/scylla,respu/scylla,jonathanleang/seastar,acbellini/seastar,kangkot/scylla,bowlofstew/scylla,tempbottle/seastar,bzero/seastar,norcimo5/seastar,chunshengster/seastar,raphaelsc/scylla,wildinto/seastar,kangkot/scylla,guiquanz/scylla,wildinto/scylla,acbellini/seastar,linearregression/scylla,hongliangzhao/seastar,flashbuckets/seastar,bowlofstew/seastar,printedheart/seastar,wildinto/seastar,asias/scylla,respu/scylla,kjniemi/seastar,koolhazz/seastar,syuu1228/seastar,capturePointer/scylla,tempbottle/scylla,bowlofstew/scylla,wildinto/seastar,anzihenry/seastar,flashbuckets/seastar,rluta/scylla,victorbriz/scylla,avikivity/seastar,eklitzke/scylla,tempbottle/seastar,anzihenry/seastar,hongliangzhao/seastar,scylladb/scylla,stamhe/scylla,bowlofstew/seastar,eklitzke/scylla,ducthangho/imdb,raphaelsc/seastar,chunshengster/seastar,respu/scylla,acbellini/scylla,acbellini/seastar,norcimo5/seastar,rentongzhang/scylla,asias/scylla,jonathanleang/seastar,rluta/scylla,dreamsxin/seastar,eklitzke/scylla,rluta/scylla,dreamsxin/seastar,acbellini/scylla,dwdm/seastar,avikivity/seastar,capturePointer/scylla,linearregression/scylla,victorbriz/scylla,cloudius-systems/seastar,bzero/seastar,kjniemi/scylla,scylladb/scylla,hongliangzhao/seastar,phonkee/scylla,senseb/scylla,tempbottle/scylla,shyamalschandra/seastar,kjniemi/scylla,leejir/seastar,justintung/scylla,aruanruan/scylla,dwdm/scylla,shyamalschandra/seastar,shaunstanislaus/scylla,senseb/scylla,syuu1228/seastar,dreamsxin/seastar,duarten/scylla,jonathanleang/seastar,ducthangho/imdb,slivne/seastar,phonkee/scylla,stamhe/seastar,dwdm/seastar,shaunstanislaus/scylla,glommer/scylla,gwicke/scylla,cloudius-systems/seastar,dwdm/scylla,glommer/scylla,slivne/seastar,joerg84/seastar,scylladb/scylla-seastar,gwicke/scylla,stamhe/scylla,guiquanz/scylla,mixja/seastar,scylladb/seastar,bowlofstew/seastar,avikivity/scylla,xtao/seastar,dwdm/seastar,avikivity/scylla,dwdm/scylla,rentongzhang/scylla,aruanruan/scylla,ducthangho/imdb,sjperkins/seastar,kjniemi/seastar,koolhazz/seastar,justintung/scylla,cloudius-systems/seastar,shaunstanislaus/scylla,avikivity/seastar