_contains.scss in bourbon-4.3.0

- old
+ new

@@ -14,9 +14,14 @@
 ///   contains($list, $value)
 ///
 /// @return {Bool}
 
 @function contains($list, $values...) {
+  @if $output-bourbon-deprecation-warnings == true {
+    @warn "[Bourbon] [Deprecation] `contains` is deprecated and will be " +
+    "removed in 5.0.0.";
+  }
+
   @each $value in $values {
     @if type-of(index($list, $value)) != "number" {
       @return false;
     }
   }