Bug 452199 - [visualizer] API filters file for multicore visualizer is
malformed

Change-Id: Iabc78f28954a7b30cf2d535fd0e8a78727160982
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
Reviewed-on: https://git.eclipse.org/r/36675
Reviewed-by: Marc Dumais <marc.dumais@ericsson.com>