python-2.7.3:remove BOM insertion code

Backport patch from:
https://hg.python.org/cpython/rev/af46a001d5ec

SysLogHandler converts message to utf8 and adds BOM, supposedly
to conform with RFC5424, but the implementation is broken:
the RFC specifies that the BOM should prefix only unstructured
message part, but current Python implementation puts it in the
middle of structured part, thus confusing RFC-compliant receivers.

(From OE-Core rev: c51caffe5ac0d49844dcbac7967f609d44c20470)

Signed-off-by: yzhu1 <yanjun.zhu@windriver.com>
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/python/python_2.7.3.bb

@@ -38,6 +38,7 @@ SRC_URI += "\
   file://python-2.7.3-CVE-2014-1912.patch \
   file://json-flaw-fix.patch \
   file://posix_close.patch \
+  file://remove-BOM-insection-code.patch \
 "
 
 S = "${WORKDIR}/Python-${PV}"