Issue #3017734 by DamienMcKenna, thalles, mrinalini9: Use short array syntax.

contrib/easy_social_example/easy_social_example.module

contrib/easy_social_example/src/Form/SettingsForm.php

easy_social.api.php

easy_social.module

easy_social.theme.inc

src/Form/EasySocialSettingsForm.php

src/Form/FacebookSettingsForm.php

src/Form/GooglePlusSettingsForm.php

src/Form/LinkedInSettingsForm.php

src/Form/PinterestSettingsForm.php

src/Form/TwitterSettingsForm.php

src/Plugin/Block/EasySocialBlock.php