minor #14839 Grammer fix (johnnypeck)

This PR was submitted for the 5.2 branch but it was merged into the 4.4 branch instead.

Discussion
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Grammer fix

Small grammar change.

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Commits
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bd610d3 Update lock.rst

Author: javiereguiluz

components/lock.rst

@@ -158,7 +158,7 @@ method, the resource will stay locked until the timeout::
 
 .. tip::
 
-    To avoid letting the lock in a locking state, it's recommended to wrap the
+    To avoid leaving the lock in a locked state, it's recommended to wrap the
     job in a try/catch/finally block to always try to release the expiring lock.
 
 In case of long-running tasks, it's better to start with a not too long TTL and