Be more realistic in tzfile example

* tzfile.5 (TZ): Give a real-world TZ example instead of an
imaginary one.

tzfile.5

@@ -220,7 +220,7 @@ if there is no POSIX-style representation for such instants.
 If nonempty, the POSIX-style TZ string must agree with the local time
 type after the last transition time if present in the eight-byte data;
 for example, given the string
-.q "WET0WEST,M3.5.0,M10.5.0/3"
+.q "WET0WEST,M3.5.0/1,M10.5.0"
 then if a last transition time is in July, the transition's local time
 type must specify a daylight-saving time abbreviated
 .q "WEST"