workunits: set LD_LIBRARY_PATH
workunits: set LD_LIBRARY_PATH

Needed by rbd workunit to find librbd.so

t-miyamae/teuthology,ktdreyer/teuthology,dmick/teuthology,caibo2014/teuthology,dreamhost/teuthology,dmick/teuthology,SUSE/teuthology,SUSE/teuthology,caibo2014/teuthology,robbat2/teuthology,ktdreyer/teuthology,ivotron/teuthology,yghannam/teuthology,zhouyuan/teuthology,dreamhost/teuthology,tchaikov/teuthology,dmick/teuthology,robbat2/teuthology,yghannam/teuthology,michaelsevilla/teuthology,ivotron/teuthology,zhouyuan/teuthology,t-miyamae/teuthology,ceph/teuthology,SUSE/teuthology,tchaikov/teuthology,michaelsevilla/teuthology,ceph/teuthology