Check in the pristine copy of ICU 4.6...

icu46/source/test/testdata/mc.txt

+//--------------------------------------------------------------------
+// Copyright (c) 2003, International Business Machines
+// Corporation and others.  All Rights Reserved.
+//--------------------------------------------------------------------
+// Author: Alan Liu
+// Created: March 20 2003
+// Since: ICU 2.6
+//--------------------------------------------------------------------
+
+// Test locale file for the fake locale 'mc', used to test the
+// ucat.h message catalog API.
+
+mc
+{
+    1%4  { "Good morning." }
+    1%5  { "Good afternoon." }
+    1%7  { "Good evening." }
+    1%8  { "Good night." }
+
+    4%14 { "Please " }
+    4%19 { "Thank you." }
+    4%20 { "Sincerely," }
+}
+
+//eof