The recent change in argument parsing is messing up the emacs lldb mode's capability to properly

scan the debugger output for program counter when it comes to the output of 'Up Stack' or 'Down Stack'
gud commands.  Remove the single quotes around the argument strings for "settings set frame-format"
and "settings set thread-format" commands to avoid the single quotes which were being emitted as part
of the debugger output.

llvm-svn: 122286