fix command output

Author: mletalie

modules/rosa-configuring-aws-account.adoc

@@ -58,20 +58,13 @@ The ROSA service evaluates regions in the following priority order:
 +
 [source,terminal]
 ----
-$ aws sts get-caller-identity
+$ aws sts get-caller-identity --output text
 ----
 +
 .Example output
 [source,terminal]
 ----
----------------------------------------------------------------------------------
-|                                GetCallerIdentity                              |
-+-------------------------------------------------------------------------------+
-|+-----------------------------------+-----------------------+-----------------+|
-||      Account        |                Arn              |       UserID        ||
-|+-----------------------------------+-----------------------+-----------------+|
-||  <account_name>     |  arn:aws:iam<string>:user:name  |      <userID>       ||
-|+-----------------------------------+-----------------------+-----------------+|
+<aws_account_id>    arn:aws:iam::<aws_account_id>:user/<username>  <aws_user_id>
 ----
 +
 After completing these steps, install ROSA.

modules/rosa-getting-started-install-configure-cli-tools.adoc

@@ -50,7 +50,7 @@ You can alternatively use the `AWS_DEFAULT_REGION` environment variable to set t
 +
 [source,terminal]
 ----
-$ aws sts get-caller-identity
+$ aws sts get-caller-identity  --output text
 ----
 +
 .Example output