[ruby/openssl] sample: avoid "include OpenSSL"

It is not a common practice and should not be done since it causes name
clash: for example, Digest and Random are provided by other standard
libraries of Ruby.

Fixes: https://github.com/ruby/openssl/issues/419

https://github.com/ruby/openssl/commit/6a6444984b

1 files changed, 5 insertions, 2 deletions

diff --git a/sample/openssl/cert2text.rb b/sample/openssl/cert2text.rb
index 50da224e76..fe14e51d3a 100644
--- a/sample/openssl/cert2text.rb
+++ b/sample/openssl/cert2text.rb
@@ -1,10 +1,13 @@
 #!/usr/bin/env ruby
 
 require 'openssl'
-include OpenSSL::X509
 
 def cert2text(cert_str)
-  [Certificate, CRL, Request].each do |klass|
+  [
+    OpenSSL::X509::Certificate,
+    OpenSSL::X509::CRL,
+    OpenSSL::X509::Request,
+  ].each do |klass|
     begin
       puts klass.new(cert_str).to_text
       return