RemoveSuffix string method
The removeSuffix (or remove_suffix) method is used create another string without a suffix.
It accept a single argument which is the substring to remove.
If the string is not ending with the suffix, it will return the original string.
For example:
findit -w 'name.removeSuffix(".bak").hasSuffix(".txt")'
will show the files with name that named *.txt and *.txt.bak.