nitcc: fixup the .lr.out file

Signed-off-by: Jean Privat <jean@pryen.org>

diff --git a/contrib/nitcc/src/grammar.nit b/contrib/nitcc/src/grammar.nit
index 040c6da..cb92bf3 100644 (file)
--- a/contrib/nitcc/src/grammar.nit
+++ b/contrib/nitcc/src/grammar.nit
@@ -569,7 +569,7 @@ class LRAutomaton
                                res.add "\t\tREDUCE {r}\n"
                        end
                end
-               return res.to_s
+               return res.join
        end
 
        # Generate a graphviz file of the automaton