[m-rev.] trivial diff: fix a typo on papers web page

[Ian MacLarty]

Estimated hours taken: 0.1

information/include/papers.inc:
	Fix a typo.

Index: information/include/papers.inc
===================================================================
RCS file: /home/mercury1/repository/w3/information/include/papers.inc,v
retrieving revision 1.57
diff -u -r1.57 papers.inc
--- information/include/papers.inc	30 Oct 2006 07:32:23 -0000	1.57
+++ information/include/papers.inc	5 Apr 2007 01:56:05 -0000
@@ -1680,7 +1680,8 @@
 In this paper we develop a mode inference system for Mercury
 based on mapping each predicate to a system of Boolean constraints
 that describe where its variables can be produced.
-This allows us handle programs that are not supported by the existing system.
+This allows us to handle programs that are not supported by the existing
+system.
 <p>
 
 <li>
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