[2850] Fix ZoneWriter constructor API doc

src/lib/datasrc/memory/zone_writer.h

@@ -46,7 +46,7 @@ public:
     ///
     /// \param segment The zone table segment to store the zone into.
     /// \param load_action The callback used to load data.
-    /// \param install_action The callback used to install the loaded zone.
+    /// \param name The name of the zone.
     /// \param rrclass The class of the zone.
     ZoneWriter(ZoneTableSegment& segment,
                const LoadAction& load_action, const dns::Name& name,