The 'tag' parameter is expected to be a NULL-terminated C-string in
callees:
- make sure it is null-terminated in both API and CLI cases
- do not allocate & copy the string into a non-NULL-terminated vector
in API case
- fix leak in CLI case
Type: fix
Change-Id: I221a489a226240548cdeb5e3663bbfb94eee4600
Signed-off-by: Benoît Ganne <bganne@cisco.com>