fts: fts_open: do not let an empty string cause immediate failure

[pspp] / ChangeLog

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+2009-12-01  Jim Meyering  <meyering@redhat.com>
+
+       fts: fts_open: do not let an empty string cause immediate failure
+       This is required in support of GNU rm, for which the command
+       "rm A '' B" must process and remove both A and B, in spite of
+       the empty string argument.
+       * lib/fts.c (fts_open): Do not let the presence of an empty string
+       cause fts_open to fail immediately.  Most fts-using tools must be
+       able to process all arguments, in order, and can be expected to
+       diagnose such arguments themselves.
+
 2009-11-30  Eric Blake  <ebb9@byu.net>
 
        utimens: fix compilation error