Remember to mark the OptionValueUUID as set in SetOptionValue. 

llvm-svn: 140835
diff --git a/lldb/source/Interpreter/OptionGroupUUID.cpp b/lldb/source/Interpreter/OptionGroupUUID.cpp
index d009008b..c8f86c2 100644
--- a/lldb/source/Interpreter/OptionGroupUUID.cpp
+++ b/lldb/source/Interpreter/OptionGroupUUID.cpp
@@ -57,6 +57,8 @@
     {
         case 'u':
             error = m_uuid.SetValueFromCString (option_arg);
+            if (error.Success())
+                m_uuid.SetOptionWasSet();
             break;
 
         default: