Typo fixes "tryies", "snaphot", "Retruns"
Typo fixes "tryies", "snaphot", "Retruns"

Misspellings and grammatical errors found in docstrings
of test.py

Change-Id: Id4d548fa4ae00056aca7434b878eaf8eb09333cc

jamielennox/tempest,vedujoshi/tempest,Juraci/tempest,hayderimran7/tempest,pczerkas/tempest,xbezdick/tempest,jamielennox/tempest,dkalashnik/tempest,manasi24/jiocloud-tempest-qatempest,Vaidyanath/tempest,yamt/tempest,danielmellado/tempest,Juniper/tempest,Vaidyanath/tempest,CiscoSystems/tempest,ebagdasa/tempest,pandeyop/tempest,flyingfish007/tempest,yamt/tempest,NexusIS/tempest,zsoltdudas/lis-tempest,masayukig/tempest,manasi24/tempest,neerja28/Tempest,alinbalutoiu/tempest,izadorozhna/tempest,afaheem88/tempest,Tesora/tesora-tempest,hpcloud-mon/tempest,afaheem88/tempest_neutron,rakeshmi/tempest,varunarya10/tempest,afaheem88/tempest_neutron,FujitsuEnablingSoftwareTechnologyGmbH/tempest,jaspreetw/tempest,rzarzynski/tempest,roopali8/tempest,eggmaster/tempest,Lilywei123/tempest,pczerkas/tempest,akash1808/tempest,redhat-cip/tempest,hayderimran7/tempest,nunogt/tempest,sebrandon1/tempest,danielmellado/tempest,roopali8/tempest,Lilywei123/tempest,tonyli71/tempest,varunarya10/tempest,Juniper/tempest,JioCloud/tempest,afaheem88/tempest,vedujoshi/tempest,alinbalutoiu/tempest,JioCloud/tempest,openstack/tempest,Juraci/tempest,jaspreetw/tempest,bigswitch/tempest,eggmaster/tempest,queria/my-tempest,rakeshmi/tempest,dkalashnik/tempest,FujitsuEnablingSoftwareTechnologyGmbH/tempest,LIS/lis-tempest,Tesora/tesora-tempest,bigswitch/tempest,neerja28/Tempest,CiscoSystems/tempest,cisco-openstack/tempest,sebrandon1/tempest,nunogt/tempest,tudorvio/tempest,flyingfish007/tempest,openstack/tempest,izadorozhna/tempest,rzarzynski/tempest,cisco-openstack/tempest,masayukig/tempest,redhat-cip/tempest,NexusIS/tempest,queria/my-tempest,manasi24/tempest,manasi24/jiocloud-tempest-qatempest,xbezdick/tempest,hpcloud-mon/tempest,zsoltdudas/lis-tempest,pandeyop/tempest,akash1808/tempest,tudorvio/tempest,tonyli71/tempest,ebagdasa/tempest,LIS/lis-tempest