add default rubar3 in config

src/Solver/RubarBE.py

@@ -169,9 +169,8 @@ class Rubar3(CommandLineSolver):
 
             it = iter(params)
 
-            line = 0
-            while line < 27:
-                param = next(it)
+            param = next(it, None)
+            while param != None:
                 name = param.name
                 value = param.value
 
@@ -204,7 +203,7 @@ class Rubar3(CommandLineSolver):
                     # New line
                     f.write(f"\n")
 
-                line += 1
+                param = next(it, None)
 
     def _export_ts(self, study, repertory, qlog, name="0"):
         if qlog is not None: