Merge pull request #21 from stellarwp/fix/vsprint_php8_incompat

Pass $data param as an array to addWarning()

StellarWP/Sniffs/XSS/EscapeOutputSniff.php

@@ -320,7 +320,7 @@ public function process( File $phpcsFile, $stackPtr )
 				"Expected next thing to be an escaping function (see Codex for 'Data Validation'), not '%s'",
 				$i,
 				'OutputNotEscaped',
-				$this->tokens[ $i ]['content']
+				array( $this->tokens[ $i ]['content'] )
 			);
 		}