Add the settabvar() and gettabvar() functions.
Various runtime file updates.
diff --git a/runtime/doc/os_390.txt b/runtime/doc/os_390.txt
index f0c9c44..a0a7155 100644
--- a/runtime/doc/os_390.txt
+++ b/runtime/doc/os_390.txt
@@ -190,7 +190,7 @@
They still do not work for the menu items themselves (like <Alt-F>O to open
the file browser).
-There is no solution for this as of yet.
+There is no solution for this yet.
==============================================================================
7. Bugs *OS390-bugs* *zOS-Bugs*