Add C99 Restrict to unistd.h #13
completed by: Chirayu Desai
mentors: Muhammad Adnan
This task consists of editing the header file unistd.h per the instructions at http://www.rtems.org/wiki/index.php/GoogleCodeInProjects#Missing_Restrict_Keyword. A patch generated using cvs diff will need to be submitted to fulfill this task. This patch will be reviewed by the mentors and suggestions are likely to be made.