Update runtime files
diff --git a/runtime/doc/testing.txt b/runtime/doc/testing.txt
index 458aa7c..9c87cba 100644
--- a/runtime/doc/testing.txt
+++ b/runtime/doc/testing.txt
@@ -1,4 +1,4 @@
-*testing.txt* For Vim version 8.2. Last change: 2020 Feb 22
+*testing.txt* For Vim version 8.2. Last change: 2020 Apr 10
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -107,7 +107,7 @@
test_null_function() *test_null_function()*
- Return a |FuncRef| that is null. Only useful for testing.
+ Return a |Funcref| that is null. Only useful for testing.
test_null_job() *test_null_job()*