doc/man7/openssl-env: document OPENSSL_TEST_LIBCTX environment variable

Complements: e89578be2930 "Test RSA oaep in fips mode"
Signed-off-by: Eugene Syromiatnikov <esyr@openssl.org>
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/28025)

diff --git a/doc/man7/openssl-env.pod b/doc/man7/openssl-env.pod
index adbb3ecd39c47d120641a11a013235a5ce8cb9ce..6fb4a2856ffa2ef60dae7b0ea44232db2e28b52b 100644 (file)
--- a/doc/man7/openssl-env.pod
+++ b/doc/man7/openssl-env.pod
@@ -107,6 +107,14 @@ Default is 0. For more info see L<CRYPTO_secure_malloc_init(3)>.
 
 This variable is not considered security-sensitive.
 
+=item B<OPENSSL_TEST_LIBCTX>
+
+This test-only environment variable, that is recognised by the L<openssl(1)>
+command, when is set to "1", leads to creation of a nondefault library context
+by the command, for which the B<-config> option then takes effect.
+
+This variable is not considered security-sensitive.
+
 =item B<OPENSSL_TRACE>
 
 By default the OpenSSL trace feature is disabled statically.