Failure in handler/scgi in 2,0.x

[pmc@citylink.dinoex.sub.org]

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Hi, 
after changing rack 1.6.4 to 2.0.3, i see the following error:

[ERR][80427] Handling client: no implicit conversion of Hash into String
/ext/gems/2.3/gems/rack-2.0.1/lib/rack/handler/scgi.rb:44:in `initialize'
/ext/gems/2.3/gems/rack-2.0.1/lib/rack/handler/scgi.rb:44:in `new'
/ext/gems/2.3/gems/rack-2.0.1/lib/rack/handler/scgi.rb:44:in 
`process_request'
/ext/gems/2.3/gems/scgi-0.9.1/lib/scgi.rb:235:in `read_header'
/ext/gems/2.3/gems/scgi-0.9.1/lib/scgi.rb:203:in `block in handle_client'


There was a change made to lib/rack/handler/scgi.rb with the number
8a7a142de07cc052f5046bfb17b903d467eb24f6

It seems to me that this change was slightly mistaken. Anyway, reverting 
this solves
my problem:

*** gems/rack-2.0.3/lib/rack/handler/scgi.rb.orig       Wed Jun 28 22:04:56 
2017
--- gems/rack-2.0.3/lib/rack/handler/scgi.rb    Wed Jun 28 22:06:10 2017
***************
*** 41,47 ****
          env[QUERY_STRING] ||= ""
          env[SCRIPT_NAME] = ""
  
!         rack_input = StringIO.new(input_body, encoding: Encoding::BINARY)
  
          env.update(
            RACK_VERSION      => Rack::VERSION,
--- 41,48 ----
          env[QUERY_STRING] ||= ""
          env[SCRIPT_NAME] = ""
  
!         rack_input = StringIO.new(input_body)
!         rack_input.set_encoding(Encoding::BINARY)
  
          env.update(
            RACK_VERSION      => Rack::VERSION,



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