PROPOSAL: Typo Correction in Spec Chapter 15 (Users & Groups)

[Johannes Poehlmann <johannes@caldera.de>]

In this chapter a system call *pwnam(3) is mentioned. 
I think it should be *getpwnam(3).

Diffs attached.
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 ==== /____/ =====   Dipl. Inf. Johannes Poehlmann, mail: jhp@caldera.de
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Index: usersgroups.m4
===================================================================
RCS file: /cvsroot/lsb/spec/usersgroups/usersgroups.m4,v
retrieving revision 1.5
diff -r1.5 usersgroups.m4
175c175
< file format is undocumented by this standard. The *pwnam(3) calls must
---
> file format is undocumented by this standard. The *getpwnam(3) calls must
183c183
< recommendations of the FHS and must be obtained by the *pwnam(3) calls.
---
> recommendations of the FHS and must be obtained by the *getpwnam(3) calls.