When defining a scripted command, it is possible to provide a docstring and that will be used as the help text for the command
 If no docstring is provided, a default help text is created
LLDB will refuse to create scripted commands if the scripting language is anything but Python
Some additional comments in AppleObjCRuntimeV2.cpp to describe the memory layout expected by the dynamic type lookup code

llvm-svn: 137801
diff --git a/lldb/source/Interpreter/CommandObject.cpp b/lldb/source/Interpreter/CommandObject.cpp
index 635d9a5..1607d8e 100644
--- a/lldb/source/Interpreter/CommandObject.cpp
+++ b/lldb/source/Interpreter/CommandObject.cpp
@@ -129,6 +129,12 @@
 }
 
 void
+CommandObject::SetHelpLong (std::string str)
+{
+    m_cmd_help_long = str;
+}
+
+void
 CommandObject::SetSyntax (const char *cstr)
 {
     m_cmd_syntax = cstr;