Vito Caputo 358ff85697 libchrome: Fix append bug in file_util::ReadFileToString()
This commit reproduces in the form of an epatch an upstream libchrome
fix to prevent ReadFileToString() from appending to the provided output
string.

Bug was observed in update_engine alephversion pref maintenance
2014-10-21 20:53:53 -04:00
..