Fixing to match only at the start of the line, so that invalid reasons like "adb1 adb2" or negative ids don't get matched. Also, removing a spurious newline introduced in the previous change. Test: atest FrameworksServicesTests:CpuWakeupStatsTest Bug: 195684213 Change-Id: Iab70f1a665a71a846a0bf8c186942f96b7e7ae95