Send errors to stderr (#3336)

* fix: send errors to stderr by default (#2561)

Closes #2561

* chore: add changelog entry

* chore: change PR id

* chore: add github username

* chore: cargo fmt...

* chore: move changelog line to bugfixes

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Make highlight tests fail when new syntaxes don't have fixtures PR #3255 (@dan-hipschman)
 - Fix crash for multibyte characters in file path, see issue #3230 and PR #3245 (@HSM95)
 - Add missing mappings for various bash/zsh files, see PR #3262 (@AdamGaskins)
+- Send all bat errors to stderr by default, see #3336 (@JerryImMouse)
 
 ## Other