Make sure to include previous msgid strings when updating po files.

diff --git a/Makefile b/Makefile
index a1d1348f08a0a0eeeb98d1f39cc5719439e6a7f5..4feb1a9c8b6f09927e1a131c0bb3149e177fa1f4 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -64,7 +64,7 @@ po/mwcc.pot: $(SOURCE).md
        rm $$TEMP
 
 po/*/mwcc.po: po/mwcc.pot
-       msgmerge $@ po/mwcc.pot -U
+       msgmerge --previous $@ po/mwcc.pot -U
        touch $@
 
 $(SOURCE).es.md: $(SOURCE).md po/es/mwcc.po