ltlsynt: misc typos

* doc/org/ltlsynt.org: Fix example.
* bin/ltlsynt.cc: Fix --help text.

bin/ltlsynt.cc

 // -*- coding: utf-8 -*-
-// Copyright (C) 2017-2018 Laboratoire de Recherche et Développement
+// Copyright (C) 2017-2019 Laboratoire de Recherche et Développement
 // de l'Epita (LRDE).
 //
 // This file is part of Spot, a model checking library.
@@ -71,7 +71,7 @@ static const argp_option options[] =
       " propositions", 0},
     /**************************************************/
     { nullptr, 0, nullptr, 0, "Fine tuning:", 10 },
-    { "algo", OPT_ALGO, "ds|sd", 0,
+    { "algo", OPT_ALGO, "ds|sd|large", 0,
       "choose the algorithm for synthesis:\n"
       " - sd:   split then determinize with Safra (default)\n"
       " - ds:   determinize (Safra) then split\n"

doc/org/ltlsynt.org

@@ -85,13 +85,13 @@ Fortunately, the SYNTCOMP organizers also provide a tool called
 [[https://github.com/reactive-systems/syfco][=syfco=]] which can translate a
 TLSF specification to an LTL formula.
 
-The following four steps show you how a TLSF specification called spec.tlsf can
+The following four steps show you how a TLSF specification called =FILE= can
 be synthesized using =syfco= and =ltlsynt=:
 
 #+BEGIN_SRC sh :export code
 LTL=$(syfco FILE -f ltlxba -m fully)
-IN=$(syfco FILE -f ltlxba -m fully)
-OUT=$(syfco FILE -f ltlxba -m fully)
+IN=$(syfco FILE --print-input-signals)
+OUT=$(syfco FILE --print-output-signals)
 ltlsynt --formula="$LTL" --ins="$IN" --outs="$OUT"
 #+END_SRC