use regular expressions

Author: Terreii

src/whatsnew/3.2.rst

@@ -114,7 +114,7 @@ Features and Enhancements
   in the url info part of endpoint urls.
 
 * :ghissue:`3483`: We added a way of specifying requirements for new user passwords
-  using a list of regexp.
+  using a list of regular expressions.
 
 * :ghissue:`3506`, :ghissue:`3416`, :ghissue:`3377`: CouchDB now provides a Prometheus
   compatible endpoint at ``GET /_node/{node-name}/_prometheus``. A configuration option