dhsow: missing white space (breaks PO files)

(cherry picked from commit fbfc5966f10c2763576f6743269efe1ff3179673)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/access/dshow/dshow.cpp

@@ -599,7 +599,7 @@ static int CommonOpen( vlc_object_t *p_this, access_sys_t *p_sys,
     {
         msg_Err( p_this, "FATAL: could not open ANY device" ) ;
         dialog_Fatal( p_this,  _("Capture failed"),
-                        _("VLC cannot open ANY capture device."
+                        _("VLC cannot open ANY capture device. "
                           "Check the error log for details.") );
         return VLC_EGENERIC ;
     }