Fails to build on QNX 6 and bad email address in README

[mkraai]

Howdy,

First, when I try to compile Patch on QNX 6, it fails with the following 
error:

> checking host system type... configure: error: can not guess host type; 
you must specify one

This problem can be worked around by replacing config.guess with a more 
recent version or by passing "i386-pc-nto-qnx6.3.2" to configure.

Second, the address for reporting bugs in Patch's README is 
address@hidden instead of @gnu.org.

Matt

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