Merge pull request #659

Author: symfony-flex-server[bot]

symfony/routing/3.3/config/packages/dev/routing.yaml

@@ -0,0 +1,3 @@
+framework:
+    router:
+        strict_requirements: null

symfony/routing/3.3/config/packages/routing.yaml renamed to symfony/routing/3.3/config/packages/prod/routing.yaml

@@ -1,4 +1,3 @@
 framework:
     router:
-        strict_requirements: null
         utf8: true