vc-list-files: make the last-resort awk code more portable

[pspp] / ChangeLog

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+2008-07-11  Jim Meyering  <meyering@redhat.com>
+
+       vc-list-files: make the last-resort awk code more portable
+       * build-aux/vc-list-files: Don't rely on awk's "sub" command.
+       /bin/awk from OpenSolaris 11's SUNWesu version 2008.03.22.10.56
+       does not support it.
+
 2008-07-10  Eric Blake  <ebb9@byu.net>
 
        Work with tar's bootstrap.