doc PG 17 relnotes: fix "pg_stat_slru_reset" wording

Reported-by: Marcos Pegoraro

Discussion: https://postgr.es/m/CAB-JLwYXrL-8FBfVDX8tevyTJ8y1SMmot5A-5cLqXAAne7W0CQ@mail.gmail.com

Backpatch-through: master

Author: bmomjian

doc/src/sgml/release-17.sgml

@@ -270,7 +270,7 @@ Rename SLRU columns in system view pg_stat_slru (Alvaro Herrera)
 </para>
 
 <para>
-The column names accepted by pg_stat_slru_rest() are also changed.
+The column names accepted by pg_stat_slru_reset() are also changed.
 </para>
 </listitem>