Fix changelog description to Enumerable#inject raises ArgumentError

Author: bjfish

CHANGELOG.md

@@ -68,7 +68,7 @@ Compatibility:
 * Update `Dir.foreach` to accept an `encoding` parameter (#2627, @bjfish).
 * Update `IO.readlines` to ignore negative limit parameters (#2625 , @bjfish).
 * Update `Math.sqrt` to raise a `Math::DomainError` for negative numbers (#2621, @bjfish).
-* Update `Enumerable#inject` to raise a `LocalJumpError` if no block or symbol are given (#2626, @bjfish).
+* Update `Enumerable#inject` to raise an `ArgumentError` if no block or symbol are given (#2626, @bjfish).
 
 Performance: