all: Use https: URLs in --version output.
* gettext-runtime/src/envsubst.c: Use https: URL in --version output.
* gettext-runtime/src/gettext.c: Likewise.
* gettext-runtime/src/gettext.sh.in: Likewise.
* gettext-runtime/src/ngettext.c: Likewise.
* gettext-tools/misc/autopoint.in: Likewise.
* gettext-tools/misc/convert-archive.in: Likewise.
* gettext-tools/misc/gettextize.in: Likewise.
* gettext-tools/src/cldr-plurals.c: Likewise.
* gettext-tools/src/hostname.c: Likewise.
* gettext-tools/src/msgattrib.c: Likewise.
* gettext-tools/src/msgcat.c: Likewise.
* gettext-tools/src/msgcmp.c: Likewise.
* gettext-tools/src/msgcomm.c: Likewise.
* gettext-tools/src/msgconv.c: Likewise.
* gettext-tools/src/msgen.c: Likewise.
* gettext-tools/src/msgexec.c: Likewise.
* gettext-tools/src/msgfilter.c: Likewise.
* gettext-tools/src/msgfmt.c: Likewise.
* gettext-tools/src/msggrep.c: Likewise.
* gettext-tools/src/msginit.c: Likewise.
* gettext-tools/src/msgmerge.c: Likewise.
* gettext-tools/src/msgunfmt.c: Likewise.
* gettext-tools/src/msguniq.c: Likewise.
* gettext-tools/src/recode-sr-latin.c: Likewise.
* gettext-tools/src/urlget.c: Likewise.
* gettext-tools/src/xgettext.c: Likewise.
* gettext-tools/tests/tstgettext.c: Likewise.
* gettext-tools/tests/tstngettext.c: Likewise.
* gnulib-local/build-aux/moopp: Likewise.
