get rid of linting warnings

to_influx_db.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+#
+# TODO: explain usage
+
+set -e
+
+HOST=${INFLUXDB_HOST:-localhost}
+PORT=${INFLUXDB_PORT:-8086}
+DATABASE=${INFLUXDB_DATABASE:-feinstaub}
+
+PRECISION=s
+
+SRC_FILE=${1:-/dev/stdin}
+
+curl --include -X POST \
+    "http://${HOST}:${PORT}/write?db=${DATABASE}&precision=${PRECISION}" \
+    --data-binary @${SRC_FILE}