tests: fix missing comma
tests: fix missing comma

rbaerzib/xtreemfs,harnesscloud/xtreemfs,jswrenn/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,kleingeist/xtreemfs,jswrenn/xtreemfs,kleingeist/xtreemfs,jswrenn/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,jswrenn/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,harnesscloud/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs,kleingeist/xtreemfs,kleingeist/xtreemfs,jswrenn/xtreemfs,jswrenn/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,jswrenn/xtreemfs,harnesscloud/xtreemfs,harnesscloud/xtreemfs,jswrenn/xtreemfs,kleingeist/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs