[fortran,doc] Change references to www.akkadia.org to https

[Gerald Pfeifer]

Committed (revision 244750), and I'll probably merge this back to
GCC 6 and possibly GCC 5.

Gerald

2017-01-21  Gerald Pfeifer  <gerald@pfeifer.com>

	* gfc-internals.texi (Symbol Versioning): Change references
	to www.akkadia.org to https.

Index: gfc-internals.texi
===================================================================
--- gfc-internals.texi	(revision 244749)
+++ gfc-internals.texi	(working copy)
@@ -761,11 +761,11 @@
 GNU @command{ld} manual}
 
 @item
-@uref{http://www.akkadia.org/drepper/symbol-versioning, ELF Symbol
+@uref{https://www.akkadia.org/drepper/symbol-versioning, ELF Symbol
 Versioning - Ulrich Depper}
 
 @item
-@uref{http://www.akkadia.org/drepper/dsohowto.pdf, How to Write Shared
+@uref{https://www.akkadia.org/drepper/dsohowto.pdf, How to Write Shared
 Libraries - Ulrich Drepper (see Chapter 3)}
 
 @end itemize