Use consistent indentation in BreakpointTestApp.cc

Change-Id: I753591b8465ec57477989fee7bbaa0537a9d7dc7
Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Reviewed-on: https://git.eclipse.org/r/35758
Reviewed-by: Marc Khouzam <marc.khouzam@ericsson.com>
Tested-by: Marc Khouzam <marc.khouzam@ericsson.com>