/usr/bin/josm is broken (/usr/bin/josm: /usr/bin/bash: bad interpreter: No such file or directory)

[sebastic]

#22088 broke /usr/bin/josm on non-usmerge systems:

$ /usr/bin/josm 
bash: /usr/bin/josm: /usr/bin/bash: bad interpreter: No such file or directory

The interpreter change in r18500 needs to be reverted, the following patch is included in the Debian package to do so:

Description: Fix bash path.
Author: Bas Couwenberg <sebastic@debian.org>
Bug: https://josm.openstreetmap.de/ticket/22088

--- a/native/linux/tested/usr/bin/josm
+++ b/native/linux/tested/usr/bin/josm
@@ -1,4 +1,4 @@
-#!/usr/bin/bash
+#!/bin/bash
 # Simple wrapper script used to start JOSM in Debian
 set -e