patch 8.2.4757: list of libraries to suppress lsan errors is outdated

Problem:    List of libraries to suppress lsan errors is outdated.
Solution:   Add another library. (closes #10201)
diff --git a/src/testdir/lsan-suppress.txt b/src/testdir/lsan-suppress.txt
index f3d62b9..ec999fa 100644
--- a/src/testdir/lsan-suppress.txt
+++ b/src/testdir/lsan-suppress.txt
@@ -5,6 +5,7 @@
 leak:libfontconfig.so.1
 leak:libglib-2.0.so.0
 leak:libtinfo.so.5
+leak:libtinfo.so.6
 # Suppress leaks from other language libraries.
 leak:libperl.so.*
 leak:libpython*.so.*
diff --git a/src/version.c b/src/version.c
index cb069bc..9a50e09 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4757,
+/**/
     4756,
 /**/
     4755,