tree 7b1c997fb1c4deb9bb2674358962a17c2df3e746
parent 57b6d7ded577e3d5b9ab326a7b8974e27a823fe9
author Primiano Tucci <primiano@google.com> 1525044505 +0100
committer Primiano Tucci <primiano@google.com> 1525044505 +0100

traced_probes: omit empty process_tree packets

Follow-up to I4592c9c0317c6f66b68357684ce9cd0577c9bdb5
which caused empty ProcessTree packets to be emitted in
the trace in corner cases (e.g., if the process has a
short lifetime).

Bug: b/78453224
Bug: b/78106582
Bug: b/77316877
Change-Id: I14831bb38fa8cfe1a81b2870d6d873ac0ea1bc9f