Index: library/nx/nx.tcl
===================================================================
diff -u -N -ra8c1439e8965d31f21dc61903ffbd3bc1c2e7635 -ra963e8896fd07c345ccfa034cbd043344edbf083
--- library/nx/nx.tcl	(.../nx.tcl)	(revision a8c1439e8965d31f21dc61903ffbd3bc1c2e7635)
+++ library/nx/nx.tcl	(.../nx.tcl)	(revision a963e8896fd07c345ccfa034cbd043344edbf083)
@@ -13,7 +13,7 @@
 # A-1020, Welthandelsplatz 1
 # Vienna, Austria
 #
-# This work is licensed under the MIT License http://www.opensource.org/licenses/MIT
+# This work is licensed under the MIT License https://www.opensource.org/licenses/MIT
 #
 # Copyright:
 #