A few more changes for encryption. Add test that encrypted file can be read.
diff --git a/src/testdir/test71.ok b/src/testdir/test71.ok
index 5820892..24652c4 100644
--- a/src/testdir/test71.ok
+++ b/src/testdir/test71.ok
@@ -1,6 +1,10 @@
01234567890123456789012345678901234567
line 2 foo bar blah
line 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-201234567890123456789012345678901234567
-2line 2 foo bar blah
-2line 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+OK 01234567890123456789012345678901234567
+OK line 2 foo bar blah
+OK line 3 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
+1234567890
+aábbccddeëff
+asdfasdfasdf
+0001112223333