Add missing CHANGELOG entry for 20.3

(cherry picked from commit 8d2d122)

Author: eregon

CHANGELOG.md

@@ -6,7 +6,7 @@ New features:
 Bug fixes:
 
 * Handle foreign null object as falsy value (#1902, @ssnickolay)
-* Fixed return value of `Enumerable#first` (#2056, @LillianZ).
+* Fixed return value of `Enumerable#first` with multiple yielded arguments (#2056, @LillianZ).
 * Improve reliability of the post install hook by disabling RubyGems (#2075).
 * Fixed top level exception handler to print exception cause (#2013).
 * Fixed issue when extending FFI from File (#2094).
@@ -15,6 +15,7 @@ Bug fixes:
 * Fixed issue with `spawn` when `:close` redirect is used (#2097).
 * Fixed `coverage` issue when `*eval` is used (#2078).
 * Use expanded load paths for feature matching (#1501).
+* Fixed handling of post arguments for `super()` (#2111).
 * Fixed `SystemStackError` sometimes replaced by an internal Java `NoClassDefFoundError` on JVM (#1743).
 * Fixed constant/identifier detection in lexer for non-ASCII encodings (#2079, #2102, @ivoanjo).
 * Fixed parsing of `--jvm` as an application argument (#2108).