Debugger executable path incorrect when attaching to a process

When attaching the debugger to a running process (Debug > Start Debugging > Attach to Running Application), the string containing the path to the process executable is incorrect whenever there is whitespace in the path.

For example, if the executable was found at

/Applications/My\ App.app/Contents/MacOS/My\ App

then the variable dExecutable would be evaluated 

dExecutable = "/Applications/My"

and the debugging session would fail.