Revert "Fix broken tests due to new error output."

This reverts commit ec7c94f8e6860968d384b578e5564a9c55c80b4a and
re-enables OptionValidators.

llvm-svn: 212627
diff --git a/lldb/source/Interpreter/OptionGroupOutputFile.cpp b/lldb/source/Interpreter/OptionGroupOutputFile.cpp
index f3ffb8a..ec9e166 100644
--- a/lldb/source/Interpreter/OptionGroupOutputFile.cpp
+++ b/lldb/source/Interpreter/OptionGroupOutputFile.cpp
@@ -33,9 +33,9 @@
 static OptionDefinition
 g_option_table[] =
 {
-    { LLDB_OPT_SET_1 , false, "outfile", 'o', OptionParser::eRequiredArgument, nullptr, 0, eArgTypeFilename , "Specify a path for capturing command output."},
+    { LLDB_OPT_SET_1 , false, "outfile", 'o', OptionParser::eRequiredArgument, nullptr, nullptr, 0, eArgTypeFilename , "Specify a path for capturing command output."},
     { LLDB_OPT_SET_1 , false, "append-outfile" , SHORT_OPTION_APND,
-      OptionParser::eNoArgument, nullptr, 0, eArgTypeNone ,
+      OptionParser::eNoArgument, nullptr, nullptr, 0, eArgTypeNone ,
       "Append to the the file specified with '--outfile <path>'."},
 };