lexless removed in master branch but still used in loading.jl

[fingolfin]

Grepping through the master branch for lexless revealed this:

base/loading.jl:99:isless(a::SHA1, b::SHA1) = lexless(a.bytes, b.bytes)

Indeed, one can now trigger this error:

julia> a = Base.SHA1("0123456789012345678901234567890123456789")
SHA1("0123456789012345678901234567890123456789")

julia> a < a
ERROR: UndefVarError: lexless not defined
Stacktrace:
 [1] isless(::Base.SHA1, ::Base.SHA1) at ./loading.jl:99
 [2] <(::Base.SHA1, ::Base.SHA1) at ./operators.jl:260
 [3] top-level scope at none:0

[JeffBezanson]

Good catch!