patch 8.2.4421: some installed files and directories have wrong permissions

Problem:    Some installed files and directories have wrong permissions.
Solution:   Adjust the Makefile and shell to set permissions. (closes #9793)
diff --git a/src/version.c b/src/version.c
index 709bf7e..21fefba 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4421,
+/**/
     4420,
 /**/
     4419,