Fix FTBFS in Debian unstable

debian/patches/ruby-interpreter.patch

---- a/src/api/bin/bundle
-+++ b/src/api/bin/bundle
-@@ -1,3 +1,3 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
- load Gem.bin_path('bundler', 'bundle')
---- a/src/api/bin/rails
-+++ b/src/api/bin/rails
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- APP_PATH = File.expand_path('../../config/application',  __FILE__)
- require_relative '../config/boot'
- require 'rails/commands'
---- a/src/api/bin/rake
-+++ b/src/api/bin/rake
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- require_relative '../config/boot'
- require 'rake'
- Rake.application.run
---- a/src/api/script/check_database
-+++ b/src/api/script/check_database
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- require File.dirname(__FILE__) + '/../config/boot'
- require File.expand_path(File.join(File.dirname(__FILE__), '..', 'config', 'environment'))
- 
---- a/src/api/script/delayed_job.api.rb
-+++ b/src/api/script/delayed_job.api.rb
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- 
- require File.expand_path(File.join(File.dirname(__FILE__), '..', 'config', 'environment'))
- require 'delayed/command'
---- a/src/api/script/import
-+++ b/src/api/script/import
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- require File.dirname(__FILE__) + '/../config/boot'
- 
- # set this to true if you want to create users that appear in metafiles
---- a/src/api/script/plugin
-+++ b/src/api/script/plugin
-@@ -1,3 +1,3 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- require File.dirname(__FILE__) + '/../config/boot'
- require 'commands/plugin'
---- a/src/api/script/reformat_memprof
-+++ b/src/api/script/reformat_memprof
-@@ -1,4 +1,4 @@
--#! /usr/bin/ruby2.3
-+#! /usr/bin/ruby
- 
- require 'rubygems'
- require 'json'
---- a/src/api/script/start_test_backend
-+++ b/src/api/script/start_test_backend
-@@ -1,4 +1,4 @@
--#!/usr/bin/env ruby2.3
-+#!/usr/bin/ruby
- ENV['RAILS_ENV'] ||= 'test'
- ENV['origin_RAILS_ENV'] ||= ENV['RAILS_ENV']
- ENV['LC_ALL'] = 'C'