Update dscheck_VMware's rpctool check (#970)

This patch updates the dscheck_VMware function's use of "vmware-rpctool".

When checking to see if a "guestinfo" property is set.
Because a successful exit code can occur even if there is an empty
string returned, it is possible that the VMware datasource will be
loaded as a false-positive. This patch ensures that in addition to
validating the exit code, the emitted output is also examined to ensure
a non-empty value is returned by rpctool before returning "${DS_FOUND}"
from "dscheck_VMware()".

0 files changed, 0 insertions, 0 deletions