doc/man7/openssl-env: document PROVIDER OPENSSL_TRACE category

Complements: 93296eaaa0e8 "Adding a trace category for PROVIDER calls"
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 bbdb33c33133398585dd738f181dde825264bce7..bae1a654c55d03f4f10ce1064ec3b195a258e7e5 100644 (file)
--- a/doc/man7/openssl-env.pod
+++ b/doc/man7/openssl-env.pod
@@ -198,6 +198,12 @@ Traces decrementing certain ASN.1 structure references.
 
 Traces the HTTP client and server, such as messages being sent and received.
 
+=item B<PROVIDER>
+
+Traces various operations that are performed on OpenSSL providers during their
+handling by the library (see L<provider(7)>), such as initialisation, tear down,
+parameter and capability retrieval, self-test, and so on.
+
 =back
 
 This variable is not considered security-sensitive.