Simplify whitespace handling in build/ Jinja templates

Source/build/scripts/templates/ElementFactory.h.tmpl

Index: Source/build/scripts/templates/ElementFactory.h.tmpl
diff --git a/Source/build/scripts/templates/ElementFactory.h.tmpl b/Source/build/scripts/templates/ElementFactory.h.tmpl
index 0f8a6bcac59f7c078b9879388df612389a0fc3a9..dcb2fafb00a18318b164ed4a200dbf99de3f5bd2 100644
--- a/Source/build/scripts/templates/ElementFactory.h.tmpl
+++ b/Source/build/scripts/templates/ElementFactory.h.tmpl
@@ -1,4 +1,4 @@
-{% from "macros.tmpl" import license -%}
+{% from "macros.tmpl" import license %}
 {{ license() }}
 
 #ifndef {{namespace}}ElementFactory_h
@@ -11,18 +11,17 @@ namespace WebCore {
 
 class Document;
 class {{namespace}}Element;
-
-{%- if namespace == 'HTML'  %}
+{% if namespace == 'HTML' %}
 class HTMLFormElement;
-{%- endif %}
+{% endif %}
 
 class {{namespace}}ElementFactory {
 public:
     static PassRefPtr<{{namespace}}Element> create{{namespace}}Element(const AtomicString& localName,
                                                                        Document&,
-                                                                       {%- if namespace == 'HTML' %}
+                                                                       {% if namespace == 'HTML' %}
                                                                        HTMLFormElement* = 0,
-                                                                       {%- endif %}
+                                                                       {% endif %}
                                                                        bool createdByParser = true);
 };