[en] small whitespace cleanup; update year in copyright statement
[en] small whitespace cleanup; update year in copyright statement

meg0man/languagetool,janissl/languagetool,janissl/languagetool,janissl/languagetool,lopescan/languagetool,jimregan/languagetool,jimregan/languagetool,languagetool-org/languagetool,lopescan/languagetool,lopescan/languagetool,meg0man/languagetool,languagetool-org/languagetool,janissl/languagetool,meg0man/languagetool,jimregan/languagetool,janissl/languagetool,meg0man/languagetool,lopescan/languagetool,janissl/languagetool,jimregan/languagetool,languagetool-org/languagetool,meg0man/languagetool,lopescan/languagetool,languagetool-org/languagetool,languagetool-org/languagetool,jimregan/languagetool