translation: do not add message location as comments into vim.pot

Let's add the --no-location to the xgettext command line call, so that
the generated vim.pot file does not contain the message location. Those
will get out of date soon and we don't want to update vim.pot just
because the location in a comment changes.

Signed-off-by: Christian Brabandt <cb@256bit.org>

src/po/Makefile

@@ -268,7 +268,8 @@ $(PACKAGE).pot: $(PO_INPUTLIST) $(PO_VIM_INPUTLIST)
 	@ cat ./vim_to_js >> ./allfiles
 	# Create vim.pot.
 	$(XGETTEXT) --default-domain=$(PACKAGE) --output=$(PACKAGE).pot \
-		--add-comments $(XGETTEXT_KEYWORDS) --files-from=./allfiles
+		--add-comments $(XGETTEXT_KEYWORDS) --files-from=./allfiles \
+		--no-location
 	# Fix Vim scripts names, so that "gf" works.
 	$(VIMPROG) -u NONE --not-a-term -S fixfilenames.vim $(PACKAGE).pot \
 		$(PO_VIM_INPUTLIST)