pmix: fix a typo in a help file

Fixes #2391

Thanks to @njoly for reporting

Signed-off-by: Howard Pritchard <howardp@lanl.gov>

opal/mca/pmix/base/help-pmix-base.txt

@@ -16,4 +16,4 @@ except due to an internal OPAL error.
 
 Job state: %s
 
-This information should probably be repopald to the OMPI developers.
+This information should probably be reported to the OMPI developers.