Use empty square brackets to get the URLs rendered in the PDF

spec/src/main/asciidoc/license-efsl.adoc

@@ -28,7 +28,7 @@ document, or portions thereof, that you use:
 * All existing copyright notices, or if one does not exist, a notice
   (hypertext is preferred, but a textual representation is permitted)
   of the form: "Copyright (c) [$date-of-document]
-  Eclipse Foundation, Inc. https://www.eclipse.org/legal/efsl.php"
+  Eclipse Foundation, Inc. https://www.eclipse.org/legal/efsl.php[]"
 
 Inclusion of the full text of this NOTICE must be provided. We
 request that authorship attribution be provided in any software,
@@ -49,7 +49,7 @@ The notice is:
 
 "Copyright (c) 2018, 2020 Eclipse Foundation. This software or
 document includes material copied from or derived from Jakarta(R)
-Transactions https://jakarta.ee/specifications/transactions/2.0/."
+Transactions https://jakarta.ee/specifications/transactions/2.0/[]."
 
 ==== Disclaimers