mem: use pub on Compare (#1352)
mem: use pub on Compare (#1352)

fixes rb

/home/shawn/git/zig/std/rb.zig:133:37: error: 'Compare' is private
    compare_fn: fn(*Node, *Node) mem.Compare,
Dimenus/zig,Dimenus/zig,raulgrell/zig,raulgrell/zig,Dimenus/zig,raulgrell/zig,zig-lang/zig,raulgrell/zig,zig-lang/zig,zig-lang/zig,andrewrk/zig,andrewrk/zig,raulgrell/zig