Merge pull request buildkite#1772 from buildkite/josh/agent-bump

Updated docs for agent 3.40.0

Author: DrJosh9000

pages/agent/v3/help/_env.md

@@ -17,8 +17,9 @@ script.
 `buildkite-agent env [options]`
 
 ## Description
-Prints out the environment of the current process as a JSON object, easily parsable by other programs. Used when
-executing hooks to discover changes that hooks make to the environment.
+Prints out the environment of the current process as a JSON object, easily
+parsable by other programs. Used when executing hooks to discover changes
+that hooks make to the environment.
 
 ## Example
     $ buildkite-agent env