STORM-3498 Use env to invoke bash (#3110)

STORM-3498: Use env to invoke bash
diff --git a/bin/flight.bash b/bin/flight.bash
index da15419..ecd76ab 100755
--- a/bin/flight.bash
+++ b/bin/flight.bash
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file
 # distributed with this work for additional information
@@ -164,5 +164,3 @@
 else
     usage_and_quit
 fi
-
-
diff --git a/conf/storm-env.sh b/conf/storm-env.sh
index d66aea0..5a9eb06 100644
--- a/conf/storm-env.sh
+++ b/conf/storm-env.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 #
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file