Insert missing comma

We get this warning without this comma:
IGW01585W MEMBER R  WILL NOT BE COPIED AND RENAMED FROM DBRMLIB
DUE TO NO-REPLACE

Signed-off-by: Janos Varga <113785741+vargajb@users.noreply.github.com>

Author: vargajb

COBOL Programming Course #3 - Advanced Topics/Labs/jcl/DB2SETUP.jcl

@@ -20,7 +20,7 @@ COPYOPER   COPY    OUTDD=JCL,INDD=DB2JCL
                            (CBLDB23C,,R),                              X
                            (CBLDB23R,,R),                              X
                            (CRETBL,,R),                                X
-                           (DBRMLIB,R),                                X
+                           (DBRMLIB,,R),                               X
                            (LOADTBL,,R),                               X
                            (SELTBL,,R),                                X
                            ($README,,R))