Add two options to radosgw-admin.rst manpage

Add '--job-id' and '--max-concurrent-ios' to Orphan Search Options

Fixes: http://tracker.ceph.com/issues/17281
Signed-off-by: Thomas Serlin <tserlin@redhat.com>
(cherry picked from commit 697f30d)

doc/man/8/radosgw-admin.rst

@@ -419,6 +419,15 @@ Orphans Search Options
         Number of seconds to wait before declaring an object to be an orphan.
         Default is 86400 (24 hours).
 
+.. option:: --job-id
+
+        Set the job id (for orphans find)
+
+.. option:: --max-concurrent-ios
+
+        Maximum concurrent ios for orphans find.
+        Default is 32.
+
 
 Examples
 ========