[OpenSmalltalk/opensmalltalk-vm] 12c687: fix autoconf typo

 
  Branch: refs/heads/krono/openbsd
  Home:   https://github.com/OpenSmalltalk/opensmalltalk-vm
  Commit: 12c6874745c3747c170d8c66a524ac5efebd44d4
      https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/12c6874745c3747c170d8c66a524ac5efebd44d4
  Author: Tobias Pape <[hidden email]>
  Date:   2018-03-06 (Tue, 06 Mar 2018)

  Changed paths:
    M platforms/unix/vm/acinclude.m4

  Log Message:
  -----------
  fix autoconf typo

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