make update_ts_files.sh a bit more robust

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@11446 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

scripts/update_ts_files.sh

@@ -23,8 +23,8 @@ if [ -n "$exclude" ]; then
   tar --remove-files -cvf i18n/qgis_ts.tar i18n/qgis_*.ts$exclude
 fi
 echo Updating python plugin translations
-for i in python/plugins/*/.; do
-	cd $i
+for i in python/plugins/*/CMakeLists.txt; do
+	cd ${i%/*}
 	pylupdate4 $(find . -name "*.py" -o -name "*.ui") -ts python-i18n.ts
 	perl ../../../scripts/ts2cpp.pl python-i18n.ts python-i18n.cpp
 	rm python-i18n.ts