veyron/tools/mounttable: defaulting mounttable name to "" if unspecified for Glob

Globbing the default mounttable (at defaultNamespaceRoot) is a common task.
Currently, one has to run: ./mounttable glob "" "..." because the mounttable
name argument is required. This CL makes it optional, defaulting it to "".

Change-Id: I6b5c7b32203248285ad70a3fcaabe0478a365f2a
1 file changed
tree: 11a45a0705662e53b71d542c7494423919c003c7
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/