<rdar://problem/13457391>

LLDB now can use a single dash for all long options for all commands form the command line and from the command interpreter. This involved just switching all calls from getopt_long() to getopt_long_only().



git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@178789 91177308-0d34-0410-b5e6-96231b3b80d8