DOC: Fix RFC reference for the percent-to-uppercase normalizer

The section is 6.2.2.1, not 6.2.21 (missing dot).

diff --git a/doc/configuration.txt b/doc/configuration.txt
index 3844454545db1a1a8e955ac138ecd418f0c8cac6..bdb5b7849e0bcbbf9becacfd8111cacbdb8562bc 100644 (file)
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -6086,7 +6086,7 @@ http-request normalize-uri query-sort-by-name [ { if | unless } <condition> ]
       - /foo//bar -> /foo/bar
 
   - percent-to-uppercase: Uppercases letters within percent-encoded sequences
-      (RFC 3986#6.2.21).
+      (RFC 3986#6.2.2.1).
 
       Example:
       - /%6f -> /%6F