Since commit 044fb04d in bitbake (fetch2: Allow whitespace only mirror
entries) there is no need to separate the entries in MIRRORS with "\n".
(From OE-Core rev: 5374c45725ef5796a563c0665cde0fc05cecd856)
Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>