doc: Move Modula 2 PM4 link to https

gcc:
	* doc/gm2.texi (Dialect): Move PM4 link to https.

diff --git a/gcc/doc/gm2.texi b/gcc/doc/gm2.texi
index a035011aa00af429ebfa1024482f93e98ffa0004..e3b8d5a69c2064c6523d4ed77a544cfa53b71d86 100644 (file)
--- a/gcc/doc/gm2.texi
+++ b/gcc/doc/gm2.texi
@@ -1382,7 +1382,7 @@ The language as defined in 'Programming in Modula-2' 2nd Edition,
 Springer Verlag, 1982, 1983 by Niklaus Wirth (PIM2), 'Programming in
 Modula-2', 3rd Corrected Edition, Springer Verlag, 1985 (PIM3) and
 'Programming in Modula-2', 4th Edition, Springer Verlag, 1988 (PIM4)
-@uref{http://freepages.modula2.org/report4/modula-2.html} and the ISO
+@uref{https://freepages.modula2.org/report4/modula-2.html} and the ISO
 Modula-2 language as defined in ISO/IEC Information technology -
 programming languages - part 1: Modula-2 Language, ISO/IEC 10514-1
 (1996) (ISO).