liblog: save errno through log writing

Test: compile
Bug: 74258013
Change-Id: I5163527826855bc506ed324aaba47f8695aaf668
1 file changed
tree: 68b4f8df34c0b9a6f865d8731d3b9518a89e5780
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/