[erlang-questions] What is this naming convention?

[Christian S]

val(Var) ->
    case ?catch_val(Var) of
        {'EXIT', _ReASoN_} -> mnesia_lib:other_val(Var, _ReASoN_);
        _VaLuE_ -> _VaLuE_
    end.

from mnesia/mnesia_lib.erl

is _BoReD_ProGRAMmeR_ style?