Allow list of certs to be separated by comma

Allow list of TLS certificates to be separated with comma. With
this change, it can be possible to specify a list of TLS certs
in `CLIENT_TLS_CA_CERTIFICATES` as a CSV list. Prior this change,
`CLIENT_TLS_CA_CERTIFICATES` can handle only one certificate and
the only way to specify a list of certificates was by using a
consecutive sequence of `--client-tls-ca-certificates` options.

Signed-off-by: Jiří Kučera <[email protected]>

Author: i386x

common/src/tls.rs

@@ -17,7 +17,12 @@ pub struct ClientConfig {
     pub tls_insecure: bool,
 
     /// Additional certificates which will be added as trust anchors.
-    #[arg(id = "client-tls-ca-certificates", long, env = "CLIENT_TLS_CA_CERTIFICATES")]
+    #[arg(
+        id = "client-tls-ca-certificates",
+        long,
+        env = "CLIENT_TLS_CA_CERTIFICATES",
+        value_delimiter = ','
+    )]
     #[serde(default)]
     pub ca_certificates: Vec<String>,
 }