Fix typo in docs

[yursha]

Summary

Fix rst syntax typo in docs

[gribozavr]

Committed revision 354203.

docs/ProgrammersManual.rst

 
 .. _iterate_chains:
 
 Iterating over def-use & use-def chains
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Frequently, we might have an instance of the ``Value`` class (`doxygen
 <http://llvm.org/doxygen/classllvm_1_1Value.html>`__) and we want to determine
-which ``User`` s use the ``Value``.  The list of all ``User``\ s of a particular
+which ``User``\ s use the ``Value``.  The list of all ``User``\ s of a particular
 ``Value`` is called a *def-use* chain.  For example, let's say we have a
 ``Function*`` named ``F`` to a particular function ``foo``.  Finding all of the
 instructions that *use* ``foo`` is as simple as iterating over the *def-use*
 chain of ``F``:
 
 .. code-block:: c++
 
   Function *F = ...;