Adapt to the new splitting heuristic.

Author: boris-spas

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/PythonOptions.java

@@ -123,8 +123,8 @@ private PythonOptions() {
     @Option(category = OptionCategory.EXPERT, help = "Switch on/off using lazy strings for performance reasons. Default true.") //
     public static final OptionKey<Boolean> LazyStrings = new OptionKey<>(true);
 
-    @Option(category = OptionCategory.EXPERT, help = "Enable forced splitting (of builtins). Default true.") //
-    public static final OptionKey<Boolean> EnableForcedSplits = new OptionKey<>(true);
+    @Option(category = OptionCategory.EXPERT, help = "Enable forced splitting (of builtins). Default false.") //
+    public static final OptionKey<Boolean> EnableForcedSplits = new OptionKey<>(false);
 
     @Option(category = OptionCategory.EXPERT, help = "Set by the launcher if an interactive console is used to run Python.") //
     public static final OptionKey<Boolean> TerminalIsInteractive = new OptionKey<>(false);