doc: mention gethostid(3) in hostid(1)

* man/hostid.x: Add gethostid(3) to SEE ALSO section.
Addresses http://bugs.gnu.org/12023
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Pádraig Brady committed 2012-07-22 13:01:03 +01:00
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@@ -2,3 +2,5 @@
hostid \- print the numeric identifier for the current host
[DESCRIPTION]
.\" Add any additional description here
[SEE ALSO]
gethostid(3)