Minor CS fixes

Author: nicolas-grekas

Link.php

@@ -117,7 +117,7 @@ class Link implements EvolvableLinkInterface
     public const REL_SERVICE_DESC = 'service-desc';
     public const REL_SERVICE_DOC = 'service-doc';
     public const REL_SERVICE_META = 'service-meta';
-    public const REL_SIPTRUNKINGCAPABILITY= 'siptrunkingcapability';
+    public const REL_SIPTRUNKINGCAPABILITY = 'siptrunkingcapability';
     public const REL_SPONSORED = 'sponsored';
     public const REL_START = 'start';
     public const REL_STATUS = 'status';