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-rw-r--r--lib/net/http.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/net/http.rb b/lib/net/http.rb
index e65a600525..c05c5baa6c 100644
--- a/lib/net/http.rb
+++ b/lib/net/http.rb
@@ -1615,7 +1615,7 @@ module Net #:nodoc:
write_timeout: @write_timeout,
continue_timeout: @continue_timeout,
debug_output: @debug_output)
- buf = "CONNECT #{conn_address}:#{@port} HTTP/#{HTTPVersion}\r\n"
+ buf = +"CONNECT #{conn_address}:#{@port} HTTP/#{HTTPVersion}\r\n"
buf << "Host: #{@address}:#{@port}\r\n"
if proxy_user
credential = ["#{proxy_user}:#{proxy_pass}"].pack('m0')