cmd: Allow users to exit the 'more' command by pressing Ctrl-Z

[Hugh McMaster]

If you run 'more' (with no arguments) in wineconsole, you end up in a continuous input stream. There is no way to exit the stream, other than pressing Ctrl-C, which terminates the console session badly.

On Windows, users can exit 'more' by pressing Ctrl-Z followed by the Enter key on a blank line. This patch enables the same behaviour in wineconsole.
 		 	   		  
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