-Fix things so that chains of certificates work in the server and client
-certificate files.
-
-This only really works for OpenSSL-based builds, as yassl is unable to read
-multiple certificates from a file. The patch below to yassl/src/ssl.cpp
-doesn't fix that, but just arranges that the viosslfactories.c patch won't
-have any ill effects in a yassl build. Since we don't use yassl in Red Hat/
-Fedora builds, I'm not feeling motivated to try to fix yassl for this.
-
-See RH bug #598656. Filed upstream at http://bugs.mysql.com/bug.php?id=54158
-
-
-diff -Naur mysql-5.1.47.orig/vio/viosslfactories.c mysql-5.1.47/vio/viosslfactories.c
---- mysql-5.1.47.orig/vio/viosslfactories.c 2010-05-06 11:28:07.000000000 -0400
-+++ mysql-5.1.47/vio/viosslfactories.c 2010-05-26 23:23:46.000000000 -0400
-@@ -106,7 +106,7 @@
+diff -ur percona-server-5.7.28-31.orig/vio/viosslfactories.c percona-server-5.7.28-31/vio/viosslfactories.c
+--- percona-server-5.7.28-31.orig/vio/viosslfactories.c 2019-12-16 23:44:00.665000000 +0100
++++ percona-server-5.7.28-31/vio/viosslfactories.c 2019-12-16 23:46:07.804000000 +0100
+@@ -199,7 +199,7 @@