patch 7.4.1981
Problem:    No testing for Farsi code.
Solution:   Add a minimal test.  Clean up Farsi code.
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 1c19cf7..88efd19 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -168,6 +168,7 @@
 	    test_cdo.res \
 	    test_channel.res \
 	    test_cmdline.res \
+	    test_farsi.res \
 	    test_hardcopy.res \
 	    test_history.res \
 	    test_increment.res \