Error Proposal #5 is also available on MIT-XX

[Kent M Pitman <KMP@SCRC-STONY-BROOK.ARPA>]

I moved a copy to MIT-XX since people were having trouble with
the filename syntax on SU-AI and MIT-MC. Here's a list of the 
places it can be obtained from:

 Host		Local Filename

 MIT-XX		<KMP>CL-ERR.PROP.5

 MIT-MC		COMMON; CL-ERR PROP5

 SU-AI		CLERR.PRP[COM,LSP]

The file is about 10K words, 50K chars, 100 lines, or
24 printed pages.