doc: use OpenGroup SUSv3 urls for manual page links.
doc: use OpenGroup SUSv3 urls for manual page links.

* build-aux/config.ld.in (custom_see_handler): Send manual page
links to OpenGroup SUSv3 specifications instead of kernel.org.

Signed-off-by: Gary V. Vaughan <f9023000f29773649f3850298becb9544b5fd6a9@gnu.org>

jimmyharris/luaposix,luaposix/luaposix,ardje/luaposix,zevv/luaposix,rrthomas/luaposix,jimmyharris/luaposix,snegovick/luaposix,zevv/luaposix,rrthomas/luaposix,ardje/luaposix,snegovick/luaposix