Improving the previous checkin about target.load-script-from-symbol-file

There are two settings:
target.load-script-from-symbol-file is a boolean that says load or no load (default: false)
target.warn-on-script-from-symbol-file is also a boolean, it says whether you want to be warned when a script file is not loaded due to security (default: true)

the auto loading on change for target.load-script-from-symbol-file is preserved



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@182336 91177308-0d34-0410-b5e6-96231b3b80d8
s/to override/To override/

Thanks to Greg Clayton for catching this

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@182339 91177308-0d34-0410-b5e6-96231b3b80d8