Drupal Coding Standards Issues | phpcs

Problem/Motivation

Getting Following errors/warnings

$ phpcs --standard=Drupal,DrupalPractice --extensions=php,module,inc,install,test,profile,theme,css,info,txt,md,yml bundle_reference

FILE: ...dle_reference\src\Plugin\Field\FieldFormatter\BundleReferenceFormatter.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AFFECTING 1 LINE
--------------------------------------------------------------------------------
 1 | ERROR | [x] End of line character is invalid; expected "\n" but found
   |       |     "\r\n"
--------------------------------------------------------------------------------
PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
--------------------------------------------------------------------------------


FILE: ...p\task\bundle_reference\src\Plugin\Field\FieldType\BundleReferenceItem.php
--------------------------------------------------------------------------------
FOUND 1 ERROR AND 2 WARNINGS AFFECTING 3 LINES
--------------------------------------------------------------------------------
  1 | ERROR   | [x] End of line character is invalid; expected "\n" but found
    |         |     "\r\n"
 84 | WARNING | [ ] t() calls should be avoided in classes, use
    |         |     \Drupal\Core\StringTranslation\StringTranslationTrait and
    |         |     $this->t() instead
 87 | WARNING | [ ] t() calls should be avoided in classes, use
    |         |     \Drupal\Core\StringTranslation\StringTranslationTrait and
    |         |     $this->t() instead
--------------------------------------------------------------------------------
PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
--------------------------------------------------------------------------------


FILE: ...sk\bundle_reference\src\Plugin\Field\FieldWidget\BundleReferenceWidget.php
--------------------------------------------------------------------------------
FOUND 4 ERRORS AFFECTING 4 LINES
--------------------------------------------------------------------------------
   1 | ERROR | [x] End of line character is invalid; expected "\n" but found
     |       |     "\r\n"
  89 | ERROR | [x] list(...) is forbidden, use [...] instead.
 103 | ERROR | [x] Use null coalesce operator instead of ternary operator.
 134 | ERROR | [x] Use null coalesce operator instead of ternary operator.
--------------------------------------------------------------------------------
PHPCBF CAN FIX THE 4 MARKED SNIFF VIOLATIONS AUTOMATICALLY
--------------------------------------------------------------------------------

Time: 556ms; Memory: 10MB

Proposed resolution

Fix the errors and warnings.