Add doc string

Author: Jlalond

lldb/bindings/interface/SBSaveCoreOptionsExtensions.i

@@ -2,6 +2,7 @@
 %extend lldb::SBSaveCoreOptions {
 #ifdef SWIGPYTHON
     %pythoncode%{
+        '''Add a thread to the SaveCoreOptions thread list, and follow its children N pointers deep, adding each memory region to the SaveCoreOptions Memory region list.'''
         def save_thread_with_heaps(self, thread, num_pointers_deep = 3):
             self.AddThread(thread)
             frame = thread.GetFrameAtIndex(0)