This reverts the patch from
<https://lists.gnu.org/archive/html/bug-gettext/2015-06/msg00000.html>.
Rationale:
<https://lists.gnu.org/archive/html/bug-gettext/2018-10/msg00000.html>.
* gettext-runtime/po/Makefile.in.in ($(POFILES)): Use $(MSGMERGE_UPDATE),
not $(MSGMERGE).
test "$(srcdir)" = . && cdcmd="" || cdcmd="cd $(srcdir) && "; \
echo "$${cdcmd}$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) --lang=$${lang} --previous $${lang}.po $(DOMAIN).pot"; \
cd $(srcdir) \
- && { case `$(MSGMERGE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
+ && { case `$(MSGMERGE_UPDATE) --version | sed 1q | sed -e 's,^[^0-9]*,,'` in \
'' | 0.[0-9] | 0.[0-9].* | 0.1[0-5] | 0.1[0-5].*) \
$(MSGMERGE_UPDATE) $(MSGMERGE_OPTIONS) $${lang}.po $(DOMAIN).pot;; \
0.1[6-7] | 0.1[6-7].*) \