Make vim recognize that "thriftl.ll" is Lex source


git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@758921 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/compiler/cpp/src/thriftl.ll b/compiler/cpp/src/thriftl.ll
index 9392734..0b4e960 100644
--- a/compiler/cpp/src/thriftl.ll
+++ b/compiler/cpp/src/thriftl.ll
@@ -248,3 +248,6 @@
 
 
 %%
+
+/* vim: filetype=lex
+*/