Add a new docstring

Author: Jlalond

lldb/bindings/interface/SBSaveCoreOptionsDocstrings.i

@@ -63,6 +63,15 @@ Note that currently ELF Core files are not supported."
     Get an SBThreadCollection of all threads marked to be saved. This collection is not sorted according to insertion order."
 ) lldb::SBSaveCoreOptions::GetThreadsToSave;
 
+%feature("docstring", "
+    Get an SBThreadCollection of all threads marked to be saved. This collection is not sorted according to insertion order."
+) lldb::SBSaveCoreOptions::GetThreadsToSave;
+
+%feature("docstring", "
+    Get the current total number of bytes the core is expectd to have, excluding the overhead of the core file format.
+    Requires both a Process and a Style to be specified."
+) lldb::SBSaveCoreOptions::GetCurrentSizeInBytes;
+
 %feature("docstring", "
     Unset all options."
 ) lldb::SBSaveCoreOptions::Clear;