Defect in XSH pthread_attr_getinheritsched

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        Defect report from : Loic Domaigne , Personal Interest

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@ page 988 line 31518 section pthread_attr_getinheritsched comment 
{pthread_attr_setinheritsched}

Problem:

Edition of Specification (Year): 2003

Defect code :  3. Clarification required

References are given against TC1.

At line 31518, the standard define a possible ENOTSUP error for 
pthread_setinheritsched() when "an attempt was made to set the attribute
to an unsupported value."

As explained by David Butenhof on austin-group-l (Thr #5856): 

| I think we ought to remove the ENOTSUP if we're cleaning up -- unless 
| someone can recall why it was there and offer some rationale. ;-)

| PTHREAD_INHERIT_SCHED and PTHREAD_EXPLICIT_SCHED must be supported. So 
| ENOTSUP could apply only to non-standard additional inheritsched 
| codes. (And I still can't imagine how any could be reasonable and 
| valid; but nevermind that.) This error code presupposes that it's OK
| for an implementation to define nonstandard codes that it doesn't
| support. Dumb. But even with that... the standard never precludes
| adding additional error codes for additional conditions not covered 
| by the standard. Without extensions, or even with reasonable
| extensions, ENOTSUP has no purpose here.



Action:

remove the line 31518