am dba9cee4: am d1b59bb4: am 3fa8b550: am 93f106b8: am e97682be: am a1a22b57: am e67b5848: am 4956c0fe: am 5b85b1d4: libutils: fix overflow in String8::allocFromUTF8

* commit 'dba9cee4b4d4716ca77a7d1ad147380a25e6eeeb':
  libutils: fix overflow in String8::allocFromUTF8