liblog: printable do not escape tabs

(cherry pick from commit 65d5ca2001440fba95d819fe41a07e8014cf30bc)

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 25755153
Change-Id: I99324e751db0e1ed1eb00820e82b176b6d789249
1 file changed