[2.7] bpo-33184: Update macOS installer build to use OpenSSL 1.0.2o. (GH-6408) (GH-6471)

(cherry picked from commit 76215a4481191b648de522a4e2120f60822f6b9c)

Co-authored-by: Ned Deily <nad@python.org>
diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 817e7c6..7875bc8 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -211,9 +211,9 @@
 
     result.extend([
           dict(
-              name="OpenSSL 1.0.2n",
-              url="https://www.openssl.org/source/openssl-1.0.2n.tar.gz",
-              checksum='13bdc1b1d1ff39b6fd42a255e74676a4',
+              name="OpenSSL 1.0.2o",
+              url="https://www.openssl.org/source/openssl-1.0.2o.tar.gz",
+              checksum='44279b8557c3247cbe324e2322ecd114',
               buildrecipe=build_universal_openssl,
               configure=None,
               install=None,
diff --git a/Misc/NEWS.d/next/macOS/2018-04-07-00-58-50.bpo-33184.rMTiqu.rst b/Misc/NEWS.d/next/macOS/2018-04-07-00-58-50.bpo-33184.rMTiqu.rst
new file mode 100644
index 0000000..9840dc9
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2018-04-07-00-58-50.bpo-33184.rMTiqu.rst
@@ -0,0 +1 @@
+Update macOS installer build to use OpenSSL 1.0.2o.