liblog: Assure shifting behavior is consistent

Shifting a signed 32-bit value by 31 bits is implementation-
defined behavior.  So we change to an unsigned value for our
shift by 31 bits, and go ahead and change the others to
unsigned for consistency.

Test: TreeHugger
Change-Id: Ib98f9b1e468d28dafd09e86273bf76beb1ea1fa5
1 file changed
tree: f99df0c50af5af4d59179b8add93ea135d88859f
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/