[comment { -- Sectioning }] [manpage_begin TEST z 3.14.15.926] [description] [section AaA] 1 [section BbB] 22 [subsection BbB.cCc] 333 [subsection BbB.dDd] 4444 [section EeE] 5555 [para] At [sectref AaA]. [para] At [sectref __undefined__]. [manpage_end]