The Reader.ReadResponse function constructs a response string through
repeated string concatenation of lines. When the number of lines in a
response is large, this can cause excessive CPU consumption.
(From OE-Core rev: 512c36af3b9d344606b2ebf54bc2f99b88dfea63)
Signed-off-by: Archana Polampalli <archana.polampalli@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>