Incorrect documentation in nltk.stem.lancaster.LancasterStemmer class

[Smeetp1234]

In nltk.stem.lancaster.LancasterStemmer class, there is an incorrect documentation in given example:

from nltk.stem.lancaster import LancasterStemmer
st = LancasterStemmer()
st.stem('cement') # ditto

For above, given output is 'cem', but the comment # ditto signifies that output should be word 'cement' without any change.
I will request to correct the above mentioned problem, as it is showing incorrect comment as compared to given output.

[Higgs32584]

I do not believe this is an issue with documentation, as the documentation matches the output of ran code. It appears to be an issue with the lancasterStemmer, if there is one.