app-text/pandoc: allow syb-0.4

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/doctest: allow syb-0.4

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
dev-haskell/chasingbottoms: allow syb-0.4

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>