Rounding constant in printing

[blegat]

We should probably call _string_round here:

JuMP.jl/src/print.jl

Lines 660 to 679 in e87f315

	function in_set_string(mode::MIME, set::MOI.LessThan)
	return string(_math_symbol(mode, :leq), " ", set.upper)
	end
	function in_set_string(mode::MIME, set::MOI.GreaterThan)
	return string(_math_symbol(mode, :geq), " ", set.lower)
	end
	function in_set_string(mode::MIME, set::MOI.EqualTo)
	return string(_math_symbol(mode, :eq), " ", set.value)
	end
	function in_set_string(::MIME"text/latex", set::MOI.Interval)
	return string("\\in \\[", set.lower, ", ", set.upper, "\\]")
	end
	function in_set_string(mode::MIME"text/plain", set::MOI.Interval)
	in = _math_symbol(mode, :in)
	return string("$in [", set.lower, ", ", set.upper, "]")
	end

See #3332 (comment)