logd: log_strtok_r deal with nuls

Rename to log_strntok_r and change from dealing with strings
to dealing with a string and an associated length.

Bug: 23517551
Change-Id: Ia72f1305a53f55eeef9861ac378fb8205fd2378e
3 files changed
tree: e8d7946b5688a0a1f6ff83e402e299b978457729
  1. liblog/
  2. logcat/
  3. logd/
  4. logwrapper/