Defect in XSH sem_trywait()

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        Defect report from : Ulrich Drepper , Red Hat

(Please direct followup comments direct to yyyyyyyyyyyyyy@xxxxxxxxxxxxx)

@ page 1255 line 39068 section sem_trywait() objection {ud-sem6}

Problem:

Defect code :  1. Error

The specification for sem_trywait and sem_wait currently requires that EINVAL 
is returned for invalid descriptors.  This should be just in all the other 
cases of functions which take descriptors a "may fail".

Action:

Move line 39068 after line 39069.