Fix a whitespace inconsistency

Null() and Crap() are only places that there's no space before '('...
diff --git a/src/dump-fon.cc b/src/dump-fon.cc
index 43d0ab0..4015409 100644
--- a/src/dump-fon.cc
+++ b/src/dump-fon.cc
@@ -341,7 +341,7 @@
   {
     const NE_TYPEINFO& next = OT::StructAfter<NE_TYPEINFO> (*this);
     if (type_id == 0)
-      return Null (NE_TYPEINFO);
+      return Null(NE_TYPEINFO);
     return next;
   }
 
@@ -349,7 +349,7 @@
   {
     if (idx < count)
       return resources[idx].get_font (base, shift);
-    return Null (LE_FONTINFO16);
+    return Null(LE_FONTINFO16);
   }
 
   inline unsigned int get_count () const
@@ -398,7 +398,7 @@
       return_trace (false);
 
     const NE_TYPEINFO* n = &chain;
-    while (n != &Null (NE_TYPEINFO) && c->check_struct (n) && n->get_type_id () != 0)
+    while (n != &Null(NE_TYPEINFO) && c->check_struct (n) && n->get_type_id () != 0)
     {
       if (n->get_type_id () == NE_TYPEINFO::FONT)
 	return_trace (n->sanitize (c, base, alignmentShiftCount));
@@ -415,13 +415,13 @@
   inline const NE_TYPEINFO& get_fonts_entry () const
   {
     const NE_TYPEINFO* n = &chain;
-    while (n != &Null (NE_TYPEINFO) && n->get_type_id () != 0)
+    while (n != &Null(NE_TYPEINFO) && n->get_type_id () != 0)
     {
       if (n->get_type_id () == NE_TYPEINFO::FONT)
 	return *n;
       n = &n->next();
     }
-    return Null (NE_TYPEINFO);
+    return Null(NE_TYPEINFO);
   }
 
   protected:
@@ -444,7 +444,7 @@
   inline const NE_RESOURCE_TABLE& get_resource_table () const
   {
     if (magic != 0x454E) // Only NE containers are support for now, NE == 0x454E
-      return Null (NE_RESOURCE_TABLE);
+      return Null(NE_RESOURCE_TABLE);
     return this+rsrctab;
   }
 
diff --git a/src/hb-private.hh b/src/hb-private.hh
index e3ca2ae..b751cad 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -645,7 +645,7 @@
   inline const Type& operator [] (unsigned int i) const
   {
     if (unlikely (i >= len))
-      return Null (Type);
+      return Null(Type);
     return arrayZ[i];
   }
 
diff --git a/src/main.cc b/src/main.cc
index 514e34d..ca0fcc5 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -54,7 +54,7 @@
   Sanitizer<OpenTypeFontFile> sanitizer;
   hb_blob_t *font_blob = sanitizer.sanitize (blob);
   const OpenTypeFontFile* sanitized = font_blob->as<OpenTypeFontFile> ();
-  if (sanitized == &Null (OpenTypeFontFile))
+  if (sanitized == &Null(OpenTypeFontFile))
   {
     printf ("Sanitization of the file wasn't successful. Exit");
     return 1;