Fix typo automatons -> automata

* NEWS, spot/twaalgos/dualize.cc, spot/twaalgos/dualize.hh,
  spot/twaalgos/langmap.cc, spot/twaalgos/sum.hh,
  tests/python/streett_totgba.py: Fixes typo.

NEWS

@@ -39,7 +39,7 @@ New in spot 2.3.5.dev (not yet released)
     families of automata or LTL formulas, used by genltl and genaut.
 
   - spot::sum() and spot::sum_and() implements the union and the
-    intersection of two automatons by putting them side-by-side and
+    intersection of two automata by putting them side-by-side and
     using non-deterministim or universal branching on the initial
     statae.
 
@@ -130,7 +130,7 @@ New in spot 2.3.5.dev (not yet released)
     to the removal of some acceptance sets.
 
   - The function spot::streett_to_generalized_buchi() is now able to
-    work on automatons with Streett-like acceptance.
+    work on automata with Streett-like acceptance.
 
   - spot::relabel_here() was used on automata to rename atomic
     propositions, it can now replace atomic propositions by Boolean

spot/twaalgos/dualize.cc

@@ -343,7 +343,7 @@ namespace spot
               true_state_ = res->new_state();
           }
         // This case does not cover cmpl && !um.first
-        // Due to previous test shortcutting automatons that accept all words.
+        // Due to previous test shortcutting automata that accept all words.
         else
           {
             assert(um.first);

spot/twaalgos/dualize.hh

@@ -35,7 +35,7 @@ namespace spot
   /// be output as generalized co-Büchi.
   ///
   /// Functions like to_generalized_buchi() or remove_fin() are frequently
-  /// called on existential automatons after dualize() to obtain an easier
+  /// called on existential automata after dualize() to obtain an easier
   /// acceptance condition, but maybe at the cost of losing determinism.
   ///
   /// If the input automaton is deterministic, the output will be deterministic.

spot/twaalgos/langmap.cc

@@ -40,7 +40,7 @@ namespace spot
     std::vector<twa_graph_ptr> alt_init_st_auts(n_states);
     std::vector<twa_graph_ptr> compl_alt_init_st_auts(n_states);
 
-    // Prepare all automatons needed.
+    // Prepare all automata needed.
     for (unsigned i = 0; i < n_states; ++i)
       {
         twa_graph_ptr c = make_twa_graph(aut, twa::prop_set::all());

spot/twaalgos/sum.hh

@@ -25,7 +25,7 @@
 namespace spot
 {
   /// \brief Sum two twa into a new twa, performing the union of the two input
-  /// automatons.
+  /// automata.
   ///
   /// \param left Left term of the sum.
   /// \param right Right term of the sum.
@@ -35,7 +35,7 @@ namespace spot
                     const const_twa_graph_ptr& right);
 
   /// \brief Sum two twa into a new twa, performing the union of the two input
-  /// automatons.
+  /// automata.
   ///
   /// \param left Left term of the sum.
   /// \param right Right term of the sum.
@@ -49,7 +49,7 @@ namespace spot
                     unsigned right_state);
 
   /// \brief Sum two twa into a new twa, using a universal initial transition,
-  /// performing the intersection of the two languages of the input automatons.
+  /// performing the intersection of the two languages of the input automata.
   ///
   /// \param left Left term of the sum.
   /// \param right Right term of the sum.
@@ -59,7 +59,7 @@ namespace spot
                         const const_twa_graph_ptr& right);
 
   /// \brief Sum two twa into a new twa, using a universal initial transition,
-  /// performing the intersection of the two languages of the input automatons.
+  /// performing the intersection of the two languages of the input automata.
   ///
   /// \param left Left term of the sum.
   /// \param right Right term of the sum.

tests/python/streett_totgba.py

@@ -68,7 +68,7 @@ def test_aut(aut):
   del os.environ["SPOT_STREETT_CONV_MIN"]
   assert equivalent(sltgba, slftgba)
 
-# Those automatons are generated with ltl2dstar, which is NOT part of spot,
+# Those automata are generated with ltl2dstar, which is NOT part of spot,
 # using the following command:
 # genltl --eh-patterns --dac-patterns --hkrss-patterns --sb-patterns |\
 # ltldo "ltl2dstar --automata=streett --output-format=hoa\