Defect in XBD <sys/mman.h>

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        Defect report from : Ulrich Drepper , Red Hat, Inc.

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@ page 385 line 12114 section <sys/mman.h> objection {ud-12}

Problem:

Defect code :  1. Error

The functions mlock() and munlock() are marked with ML (_POSIX_MEMLOCK option) 
in the <sys/mman.h> man page.  They belong to the _POSIX_MEMLOCK_RANGE option, 
though.

Action:

- Change marker for line 12114 to MLR
- Add ML as marker for line 12115
- Change merger for line 12119 to MLR
- Add ML as marker for line 12120