Fix tests under Redis 3.x; we can be of an "embedded string" format now.
Fix tests under Redis 3.x; we can be of an "embedded string" format now.

Signed-off-by: Chris Lamb <711c73f64afdce07b7e38039a96d2224209e9a6c@chris-lamb.co.uk>

softliumin/redis-py,fengshao0907/redis-py,ze-phyr-us/redis-py,dylanjw/redis-py,jparise/redis-py,5977862/redis-py,harlowja/redis-py,boyxuper/redis-py,sirk390/redis-py,softliumin/redis-py,ContextLogic/redis-py,joshowen/redis-py,nfvs/redis-py,MegaByte875/redis-py,barseghyanartur/redis-py,fengsp/redis-py,yuruidong/redis-py,pombredanne/redis-py,VishvajitP/redis-py,thedrow/redis-py,barseghyanartur/redis-py,sunminghong/redis-py,5977862/redis-py,ContextLogic/redis-py,sunminghong/redis-py,sunminghong/redis-py,sirk390/redis-py,VishvajitP/redis-py,sigma-random/redis-py,mozillazg/redis-py-doc,pombredanne/redis-py,joshowen/redis-py,jparise/redis-py,dylanjw/redis-py,forblackking/redis-py,softliumin/redis-py,Kazanz/redis-py,MegaByte875/redis-py,ferrero-zhang/redis-py,Kazanz/redis-py,jparise/redis-py,yuruidong/redis-py,fengsp/redis-py,nfvs/redis-py,barseghyanartur/redis-py,harlowja/redis-py,5977862/redis-py,ferrero-zhang/redis-py,rcrdclub/redis-py,ContextLogic/redis-py,fengshao0907/redis-py,rcrdclub/redis-py,thedrow/redis-py,redis/redis-py,alisaifee/redis-py,JamieCressey/redispy,andymccurdy/redis-py,yuruidong/redis-py,thedrow/redis-py,harlowja/redis-py,ferrero-zhang/redis-py,fengsp/redis-py,MegaByte875/redis-py,ze-phyr-us/redis-py,forblackking/redis-py,andymccurdy/redis-py,Kazanz/redis-py,boyxuper/redis-py,rcrdclub/redis-py,joshowen/redis-py,sigma-random/redis-py,fengshao0907/redis-py,pombredanne/redis-py,sigma-random/redis-py,andymccurdy/redis-py,boyxuper/redis-py,alisaifee/redis-py,forblackking/redis-py,sirk390/redis-py,JamieCressey/redispy,redis/redis-py,VishvajitP/redis-py,dylanjw/redis-py,ze-phyr-us/redis-py,nfvs/redis-py,JamieCressey/redispy,mozillazg/redis-py-doc