Fix a couple of error message typos.

git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@183145 91177308-0d34-0410-b5e6-96231b3b80d8
Fix FreeBSD build due to previous changes to ProcessMonitor::Detach.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@183150 91177308-0d34-0410-b5e6-96231b3b80d8