Clean up and fix Python and Shell shebang lines (#1415)

Author: jbampton

build

@@ -1,4 +1,4 @@
-#! /usr/bin/env bash
+#!/usr/bin/env bash
 # -----------------------------------------------------------------------------------
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more

src/Lucene.Net/Util/Packed/gen_BulkOperation.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with

src/Lucene.Net/Util/Packed/gen_Direct.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with

src/Lucene.Net/Util/Packed/gen_Packed64SingleBlock.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with

src/Lucene.Net/Util/Packed/gen_PackedThreeBlocks.py

@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with