Added command prefix to new help messages to ensure that they're correctly words in REPL mode.
Added command prefix to new help messages to ensure that they're correctly words in REPL mode.



git-svn-id: 4c4cc70b1ef44ba2b7963015e681894188cea27e@266940 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lldb,llvm-mirror/lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb,llvm-mirror/lldb,apple/swift-lldb,apple/swift-lldb