Pullup ticket #3598 - requested by dholland
math/ess build fix

Revisions pulled up:
- math/ess/Makefile                                            1.21

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  Module Name: pkgsrc
  Committed By: hans
  Date: Thu Nov 10 21:31:49 UTC 2011

  Modified Files:
  pkgsrc/math/ess: Makefile

  Log Message:
  not MAKE_JOBS_SAFE

(sbd)