patch 8.2.0479: unloading shared libraries on exit has no purpose

Problem:    Unloading shared libraries on exit has no purpose.
Solution:   Do not unload shared libraries on exit.
diff --git a/src/version.c b/src/version.c
index 402ed40..f1d74d8 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    479,
+/**/
     478,
 /**/
     477,