weather: trim garbage from output

rc/bin/weather

@@ -42,5 +42,5 @@ sed 's/   Press Return to continue, M to return to menu, X to exit: //' |
 grep -v 'CITY FORECAST MENU' |
 tr -d '
' |
 sed 's/ *$//' |
-uniq
-
+uniq |
+sed -n '/^VTEC/q; p'

sys/man/1/weather

@@ -28,8 +28,13 @@ location identifiers known for
 The arguments are mutually exclusive and case-insensitive.
 If neither is given,
 .I air
-defaults to location identifier
+defaults to the value of the environment variable
+.BR $weather ,
+or if it is unset,
+to the location identifier
 .BR ewr ,
 designating the Newark, NJ, airport near Bell Labs, Murray Hill.
 .SH SOURCE
 .B /rc/bin/weather
+.SH BUGS
+Weather is hopelessly provincial.