clarify comment about uid check on abort() am: 9461bb1f48 am: e0025809df

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2576230

Change-Id: I6186de7f845c2afe02cea1fb19235ceb370db212
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>