Renaming the setting to enable/disable automatic one-lining of summaries as auto-one-line-summaries



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@193801 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed printf warnings.



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@193806 91177308-0d34-0410-b5e6-96231b3b80d8