updated for version 7.4.483
Problem:    A 0x80 byte is not handled correctly in abbreviations.
Solution:   Unescape special characters. Add a test. (Christian Brabandt)
diff --git a/src/testdir/test_mapping.ok b/src/testdir/test_mapping.ok
new file mode 100644
index 0000000..abdaea6
--- /dev/null
+++ b/src/testdir/test_mapping.ok
@@ -0,0 +1,2 @@
+test starts here:
+vim