Updating the doc for v3 as this changes required for 1.13 version

content/v3/deployment/csmoperator/drivers/powermax.md

@@ -192,7 +192,6 @@ CSI PowerMax ReverseProxy is a component that will be installed with the CSI Pow
 
 #### Pre-requisites
 Create a TLS secret that holds an SSL certificate and a private key. This is required by the reverse proxy server.
-Use a tool such as `openssl` to generate this secret using the example below:
 
 Create the Configuration file (openssl.cnf) which includes the subjectAltName:
 ```bash
@@ -219,7 +218,7 @@ Use a tool such as `openssl` to generate this secret using the example below:
 ```bash
 openssl genrsa -out tls.key 2048
 openssl req -new -key tls.key -out tls.csr -config openssl.cnf
-openssl x509 -req -in tls.csr -signkey tls.key -out tls.crt -days 3650 -extensions v3_req -extfile openssl.cnf
+openssl x509 -req -in tls.csr -signkey tls.key -out tls.crt -days 3650 -extensions req_ext -extfile openssl.cnf
 kubectl create secret -n <namespace> tls csirevproxy-tls-secret --cert=tls.crt --key=tls.key
 ```