MT#20387 remove noise of I18N job

this option tells msgmerge, to not even create line numbers in the
first place. in that way, hopefully the line jumping induced by msgmerge
wrapping the lines will reduce further.

Change-Id: I8f941352ca211888d1e80ce4bb151ca4e6f25672

script/extract_i18n.sh

@@ -32,7 +32,7 @@ xgettext.pl \
 
 for po in $(find lib/NGCP/Panel/I18N -name "*.po"); do
 	echo; echo "Merging $po"; echo
-	msgmerge --no-fuzzy-matching --update $po $POT
+	msgmerge --no-fuzzy-matching --add-location=file --update $po $POT
 done
 
 echo; echo "Removing line numbers"; echo