Index: parallel-20190422/src/parallel
===================================================================
--- parallel-20190422.orig/src/parallel
+++ parallel-20190422/src/parallel
@@ -1609,7 +1609,7 @@ sub parse_options(@) {
     #
     # If you are an honest person please read the above before
     # changing this line.
-    citation_notice();
+    # citation_notice();
 
     parse_halt();
 
Index: parallel-20190422/src/sem
===================================================================
--- parallel-20190422.orig/src/sem
+++ parallel-20190422/src/sem
@@ -1609,7 +1609,7 @@ sub parse_options(@) {
     #
     # If you are an honest person please read the above before
     # changing this line.
-    citation_notice();
+    # citation_notice();
 
     parse_halt();