patch 8.1.1382: error when editing test file

Problem:    Error when editing test file.
Solution:   Remove part of modeline.
diff --git a/src/testdir/test49.in b/src/testdir/test49.in
index a0c9e0d..79f13f6 100644
--- a/src/testdir/test49.in
+++ b/src/testdir/test49.in
@@ -5,7 +5,7 @@
 
 STARTTEST
 :so small.vim
-:se nocp nomore viminfo+=nviminfo modelineexpr
+:se nocp nomore viminfo+=nviminfo
 :lang mess C
 :so test49.vim
 :" Go back to this file and append the results from register r.