DO NOT MERGE: handle newlines in file names
Nick Kralevich authored
restorecon on file names with newlines are not handled properly.
Use PCRE_DOTALL so that dots in regular expressions match all
characters, and don't exclude the newline character.

See https://www.mail-archive.com/seandroid-list@tycho.nsa.gov/msg02001.html
for background.

(cherry picked from commit 51fc85bc)

Change-Id: I413ff130e4328b8325be78d9fab119a466df84f3
6608a187