Btsnooz doesn't find snooplog sometimes

In the bugreport in b/27274486 comment #11, the line indicating the
beginning of BTSNOOP LOGS was slightly indented thus causing btsnooz
to not find the beginning of the log.

Bug: 27419027
Change-Id: I3b88e6a3f6f2d6c4d3cbbadb0a93cbd7965f56c8