'util-linux' package added for column utility
@@ -2,10 +2,9 @@ FROM alpine
RUN apk -U upgrade
-RUN apk --no-cache add curl jq w3m
-
+RUN apk --no-cache add curl jq w3m \
+ util-linux # for "columns" binary
RUN curl -L "https://git.io/tmpmail" > tmpmail && chmod +x tmpmail
RUN mv tmpmail /bin/