hindent-2.1: dependencies

Dependencies for hindent-2.1

library	base (>=4.5 && <4.8) data-default (>=0.2 && <0.8) haskell-src-exts (>=1.15 && <1.16) mtl (>=2.0.1 && <2.3) text (<1.3)
hindent	base (>=4.5 && <4.8) hindent text (<1.3)