Make parsing_option 0 work with abbreviations again

[Tazinho]

to_any_case("too_cooL", parsing_option = 0, abbreviations = "coo")
[1] "too l lcoor r l"

And also with seo_out

to_any_case("too_cooL", parsing_option = 0, abbreviations = "coo" ,sep_out = "_")
[1] "too l lcoor r l"