* doc/lispref/os.texi (User Identification): Fix function name
of 'group-name'.
return value is @code{nil}.
@end defun
-@defun user-login-name gid
-This runction returns the group name that corresponds to @var{gid},
-or @code{nil} if there is no such group.
+@defun group-name gid
+This function returns the group name that corresponds to the numeric
+group ID @var{gid}, or @code{nil} if there is no such group.
@end defun