dejagnu runtest and runtest.exp

[Jeffrey A Law]

  In message < 199710140142.VAA27543@tweedledumb.cygnus.com >you write:
  > | > Philippe De Muyter just posted a patch
  > | > (< 199710131730.TAA11370@mail.macqel.be >) which should fix that, but I
  > | > think his patch should be changed to search PATH rather than to rely
  > | > on the builtin ``type'' command.
  > | 
  > | OK, here it is.  With an example it is much easier :)
  > | Note that I use test -x, not -f as in example Ian provided.  This should
  > | perhaps be fixed in configure.
  > 
  > If this code is going to run on really old shells, then please change
  > the test back to -f, as I recall, the older shells on systems such as
  > BSD 4.2 and Ultrix did not support the full range of test features.
Note, we already use -x elsewhere in runtest -- I suspect there's not
much hope for lots of code if a particular shell doesn't support -x.

jeff