Fix violations detected by phpcs. More information: https://github.com/squizlabs/PHP_CodeSniffer.
phpcbf path/to/directory
phpcbf -i
phpcbf path/to/directory --standard standard
phpcbf path/to/directory --extensions file_extension1,file_extension2,...
phpcbf path/to/directory --bootstrap path/to/file1,path/to/file2,...)
phpcbf path/to/directory -l