Fix build issue

flexferrum · flexferrum · commit b1e4633b0642 · 2019-08-07T22:53:14.000+03:00
diff --git a/thirdparty/Jinja2Cpp b/thirdparty/Jinja2Cpp
@@ -1 +1 @@
-Subproject commit c8d962e3e9471bcae36a9f9c4bc0b498d6b664f5
+Subproject commit 6881852f6aac7972d5e4ca2df42957ab3b837e2a
