[Squirrel-sql-translators] Translation String update

I know I said I would resist changes to I18n strings in the next week
or two, but this is a simple one for a bug fix:

sql/app/src/net/sourceforge/squirrel_sql/client/session/I18NStrings.properties:

SQLPanelAPI.unsavedchanges=There are unsaved changes. Save them now?

becomes:

SQLPanelAPI.unsavedchanges=There are unsaved changes in file:\n {0} \n
Save them now?


Rob