postmultiplication with LQPackedQ broken for some non-square shapes

[Sacha0]

julia> F = lqfact(randn(3, 4));

julia> iL, iQ = F[:L], F[:Q];

julia> iL * iQ
ERROR: DimensionMismatch("for a right-sided multiplication, the second dimension of C, 4, must equal the first dimension of A, 3")
Stacktrace:
 [1] ormlq!(::Char, ::Char, ::Array{Float64,2}, ::Array{Float64,1}, ::Array{Float64,2}) at ./linalg/lapack.jl:2609
 [2] *(::Array{Float64,2}, ::Base.LinAlg.LQPackedQ{Float64,Array{Float64,2}}) at ./linalg/lq.jl:169

julia> size(iL), size(iQ)
((3, 3), (3, 4))

In this multiplication context, iQ behaves like its square form whereas it should behave like its thin form. (size reports the shape of iQ's thin form.) (Edit: On further investigation, not quite. The multiplication method this call initially hits correctly zero-pads iL to shape (3, 4), but ormlq! then applies incorrect shape checks?) Best!

[andreasnoack]

Should be fixed by JuliaLang/julia#23803