[PATCH v2] tools: hv: lsvmbus: change shebang to use python3

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In many modern Linux distros, running `lsvmbus` returns the error:
```
/usr/bin/env: 'python': No such file or directory
```
because 'python' doesn't point anywhere.

Now that python2 has reached EOL as of January 1, 2020 and is no longer
maintained[1], these distros have python3 instead.

Also, the script isn't executable by default because the permissions are
set to mode 644.

Fix this by updating the shebang in the `lsvmbus` to use python3 instead
of python. Also fix the permissions to be 755 so that is executable by
default, which matches other similar scripts in `tools/hv`.

The script is also tested and verified that is compatible with
python3.

[1] https://www.python.org/doc/sunset-python-2/

Signed-off-by: Anthony Nandaa <profnandaa@xxxxxxxxx>
Reviewed-by: Wei Liu <wei.liu@xxxxxxxxxx>
Reviewed-by: Michael Kelley <mhklinux@xxxxxxxxxxx>
---
v2:
* change the commit message body to conform to guidelines.
---
 tools/hv/lsvmbus | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 mode change 100644 => 100755 tools/hv/lsvmbus

diff --git a/tools/hv/lsvmbus b/tools/hv/lsvmbus
old mode 100644
new mode 100755
index 55e7374bade0..23dcd8e705be
--- a/tools/hv/lsvmbus
+++ b/tools/hv/lsvmbus
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0
 
 import os
-- 
2.39.4





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