logcat: Add coding style

- Android coding standard compliance with an eye to reducing merge
  impact.
- resolve a few misbehaviors in logcat_test.

SideEffects: none
Test: gTest logcat-unit-tests
Bug: 35326290
Change-Id: I63d0667ad34c0df11086a6ffe94b7030430b865b
3 files changed
tree: e86d3ad7eea03863b1011abb26ec55d8fa888e9d
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/