ktn_dodger can't parse -else.

[elbrujohalcon]

Bug Description

When running ktn_dodger:parse_file/1,2 on a file with an -else., it reports an error (or, if using no_fail, it just parses that as text instead of an actual attribute).

To Reproduce

Try running ktn_parse:parse_file/1,2 on the following file…

-module x.

-export [x/0].

-ifdef(VAR).
x() ->
    var.
-else.
x() ->
    not_var.
-endif.

Expected Behavior

-else. to be parsed as an attribute.

Additional Context

• OS: MacOS
• Erlang version: OTP25