`bp add` crashes Debugger

[staticfloat]

1|debug> bp add
ERROR: MethodError: no method matching (::Debugger.var"#bp_error#55")()
Closest candidates are:
  bp_error(::Any) at /Users/sabae/.julia/packages/Debugger/eTh3Q/src/breakpoints.jl:30

I'm guessing this should probably just print out the breakpoint help.