[#322] *: Go fmt -s

go1.19 rewrites comments to proper render them in docs.

Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>

subnet/doc.go

@@ -5,6 +5,5 @@ Subnet of a particular NeoFS network consists of a subset of the storage nodes
 of that network. Subnet of the whole network is called zero. Info type acts as
 a subnet descriptor. Each subnet is owned by the user who created it. Information
 about all subnets is stored in the Subnet contract of the NeoFS Sidechain.
-
 */
 package subnet