[RTEMS Project] #4341: fastlz.c: Unused value error spotted by Coverity

[RTEMS trac]

#4341: fastlz.c: Unused value error spotted by Coverity
------------------------+--------------------
  Reporter:  Ryan Long  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  normal     |  Milestone:  6.1
 Component:  lib/dl     |    Version:  6
  Severity:  normal     |   Keywords:
Blocked By:             |   Blocking:
------------------------+--------------------
 CID 1399751: Unused value in fastlz2_compress().

 {{{
 219    if(ip[0] == ip[-1] && FASTLZ_READU16(ip-1)==FASTLZ_READU16(ip+1))
 220    {
 221      distance = 1;
    CID 1399751 (#1 of 1): Unused value (UNUSED_VALUE)assigned_pointer:
 Assigning value from ip + 3 to ip here, but that stored value is
 overwritten before it can be used.
 222      ip += 3;
 }}}

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Ticket URL: <http://devel.rtems.org/ticket/4341>
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