Shortened string should really be shorter

Change-Id: I34afb1c85cf1cf389faab5f1ae415e34d42c5ef5
Reviewed-on: https://gerrit.libreoffice.org/5491Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sw/source/ui/docvw/SidebarWin.cxx

@@ -382,7 +382,7 @@ void SwSidebarWin::CheckMetaText()
     {
         sMeta = SW_RESSTR(STR_NOAUTHOR);
     }
-    else if (sMeta.getLength() > 22)
+    else if (sMeta.getLength() > 23)
     {
         sMeta = sMeta.copy(0, 20) + "...";
     }