docs: Use https in manual.

gcc/d/ChangeLog:

	* gdc.texi: Use one more https.

diff --git a/gcc/d/gdc.texi b/gcc/d/gdc.texi
index d93d2e8..01d0488 100644 (file)
--- a/gcc/d/gdc.texi
+++ b/gcc/d/gdc.texi
@@ -66,7 +66,7 @@ This manual describes how to use @command{gdc}, the GNU compiler for
 the D programming language.  This manual is specifically about
 @command{gdc}.  For more information about the D programming
 language in general, including language specifications and standard
-package documentation, see @uref{http://dlang.org/}.
+package documentation, see @uref{https://dlang.org/}.
 
 @menu
 * Copying::                     The GNU General Public License.