Support for getloadinfo returning a list of more then 1, as when doinf image deltas. Canonicalize name to remove , and : which are valid in file names but not in LVM name (sheesh), and must be converted to dashes.
Support for getloadinfo returning a list of more then 1, as when doinf
image deltas. Canonicalize name to remove , and : which are valid in file
names but not in LVM name (sheesh), and must be converted to dashes.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome