Simplify whitespace handling in build/ Jinja templates

Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl

Index: Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
diff --git a/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl b/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
index 36caa9cbcb954132e0ba75d5a6912405e619e41f..2ceaf75bd206885c04b957358b8c4272bb5978cb 100644
--- a/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
+++ b/Source/build/scripts/templates/ElementLookupTrie.cpp.tmpl
@@ -1,4 +1,4 @@
-{% from "macros.tmpl" import license -%}
+{% from "macros.tmpl" import license %}
 {{ license() }}
 
 #include "config.h"
@@ -15,7 +15,9 @@ StringImpl* lookup{{namespace}}Tag(const UChar* data, unsigned length)
     ASSERT(data);
     ASSERT(length);
     switch (length) {
-{{body}}
+{{body}}{# FIXME: use indent #}
+{# FIXME: remove blank line #}
+
     }
     return 0;
 }