Log Message:
Update to 1.4.9. From the changelog:

indexers:

* omindex:

  + Try harder to avoid opening a file being indexed more than once by
    reusing the file descriptor in more cases.

  + Hint to the OS not to cache output from external filters which require
    using a temporary file.

* scriptindex:

  + If the LOAD action successfully opens a file but hits a read error the
    error message now reports the file name correctly.  Previously it would
    report the partial file contents read so far instead of the file name.

portability:

* We no longer call posix_fadvise() with POSIX_FADV_NOREUSE under Linux,
  since it's still not implemented there.  We also now only call
  posix_fadvise() with POSIX_FADV_DONTNEED right before we close the file
  descriptor under Linux.