Fix a typo in the man page. Thanks to Jeremiah Willcock for pointing

it out.

This commit was SVN r22268.

orte/tools/orterun/orterun.1in

@@ -933,7 +933,7 @@ fails, \fImpirun\fP will abort.
 If the \fI-wdir\fP option is \fBnot\fP specified, Open MPI will send
 the directory name where \fImpirun\fP was invoked to each of the
 remote nodes. The remote nodes will try to change to that
-directory. If they are unable (e.g., if the directory does not exit on
+directory. If they are unable (e.g., if the directory does not exist on
 that node), then Open MPI will use the default directory determined by
 the starter.
 .PP