[ruby/openssl] Fixes OPENSSL_LIBRARY_VERSION description on

documentation
(https://github.com/ruby/openssl/pull/559)

Adds back missing constant description on the documentation.

ext/openssl/ossl.c

@@ -1179,12 +1179,15 @@ Init_openssl(void)
      */
     rb_define_const(mOSSL, "OPENSSL_VERSION", rb_str_new2(OPENSSL_VERSION_TEXT));
 
+#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000
     /*
     * Version of OpenSSL the ruby OpenSSL extension is running with
     */
-#if !defined(LIBRESSL_VERSION_NUMBER) && OPENSSL_VERSION_NUMBER >= 0x10100000
     rb_define_const(mOSSL, "OPENSSL_LIBRARY_VERSION", rb_str_new2(OpenSSL_version(OPENSSL_VERSION)));
 #else
+    /*
+    * Version of OpenSSL the ruby OpenSSL extension is running with
+    */
     rb_define_const(mOSSL, "OPENSSL_LIBRARY_VERSION", rb_str_new2(SSLeay_version(SSLEAY_VERSION)));
 #endif