NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

christos
Fri May  9 15:38:38 EDT 1997
Update of /cvsroot/src/include
In directory netbsd1:/var/slash-tmp/cvs-serv7848

Modified Files:
        unistd.h 
Log Message:
Add missing prototype for getgrouplist as mentioned in the man page.