Update CHANGELOG.md

CHANGELOG.md

@@ -47,6 +47,7 @@ BUG FIXES:
 * agent: Fixed an issue where agents could use the ACL token registered with a service when registering checks for the same service that were registered with a different ACL token. [GH-2829]
 * cli: Fixed `consul kv` commands not reading the `CONSUL_HTTP_TOKEN` environment variable. [GH-2566]
 * cli: Fixed an issue where prefixing an address with a protocol (such as 'http://' or 'https://') in `-http-addr` or `CONSUL_HTTP_ADDR` would give an error.
+* cli: Fixed an issue where error messages would get printed to stdout instead of stderr. [GH-2548]
 * server: Fixed an issue with version 8 ACLs where servers couldn't deregister nodes from the catalog during reconciliation. [GH-2792] This fix was generalized and applied to registering nodes as well. [GH-2826]
 * server: Fixed an issue where servers could temporarily roll back changes to a node's metadata or tagged addresses when making updates to the node's health checks. [GH-2826]
 * server: Fixed an issue where the service name `consul` was not subject to service ACL policies with version 8 ACLs enabled. [GH-2816]