Fix `lateinit property _logSeparator has not been initialized`

When stopping a monitor that was not activated (e.g. because the test crashed), it would produce an error and not store the remaining logs.

Bug: 186715458
Test: atest FlickerLibTest FlickerTests WMShellFlickerTests
Change-Id: Iadd5c090af8582eaf9f469312d8090b2049c901b
1 file changed
tree: 190c462029d1bf85e05bf029d5cedf2d6e35af59
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg