Bug 1647: Fix misspelling of error_logger:error_msg in ns_doctor
Bug 1647: Fix misspelling of error_logger:error_msg in ns_doctor

This was taking down the entire global singleton on a node that was
ejected from a cluster.

Change-Id: Ieaf83fc4316b103994ca50b0611bd82e787865c7
Reviewed-on: http://review.northscale.com/971
Reviewed-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>
Tested-by: Steve Yen <ef850f73f7832052d3c6d9b5ddd3a1716d9a57f1@gmail.com>

membase/ns_server,ceejatec/ns_server,membase/ns_server,daverigby/ns_server,t3rm1n4l/ns_server,pavel-blagodov/ns_server,membase/ns_server,vzasade/ns_server,ingenthr/ns_server,membase/ns_server,membase/ns_server,nimishzynga/ns_server,mschoch/ns_server,ingenthr/ns_server,ceejatec/ns_server,daverigby/ns_server,nimishzynga/ns_server,daverigby/ns_server,daverigby/ns_server,nimishzynga/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,pavel-blagodov/ns_server,pavel-blagodov/ns_server,ingenthr/ns_server,nimishzynga/ns_server,daverigby/ns_server,vzasade/ns_server,t3rm1n4l/ns_server,ceejatec/ns_server,ceejatec/ns_server,mschoch/ns_server,vzasade/ns_server,mschoch/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,pavel-blagodov/ns_server,ceejatec/ns_server,ingenthr/ns_server,vzasade/ns_server,membase/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,ceejatec/ns_server