export diag_handler:grab_process_info/1

this is useful for debugging

Change-Id: Ie301717e7a57e33bee24077066b584ef4d5a1efa
Reviewed-on: http://review.membase.org/4340
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Reviewed-by: Steve Yen <steve.yen@gmail.com>

deps/menelaus/src/diag_handler.erl

@@ -21,6 +21,7 @@
 
 -export([do_diag_per_node/0, handle_diag/1, handle_sasl_logs/1,
          arm_timeout/2, arm_timeout/1, disarm_timeout/1,
+         grab_process_info/1,
          diagnosing_timeouts/1]).
 
 diag_filter_out_config_password_list([], UnchangedMarker) ->