TYPEDEF does not show type parameters for abstract types.

[lassepe]

TYPEDEF ommits type parameters of abstract types. E.g.

using DocStringExtensions: TYPEDEF

"""
$(TYPEDEF)
"""
abstract type MyAbstractType{T} end

Will result in the following (REPL) documentation:

help?> MyAbstractType
  abstract type MyAbstractType

[MichaelHatherly]

Sounds fine to me, pretty sure this used to work, though that was pre-1.0 days... probably pretty easy to add. Have a look at https://github.com/JuliaDocs/DocStringExtensions.jl/blob/master/src/abbreviations.jl#L484-L538. Should just need some print_params(buf, object) added to those methods. Feel free to open a PR if you have the time.