message: switch to library props.
diff: @@ -3,7 +3,7 @@ library identifier: 'salesforcedx-library'
  final String htmlRedirectTemplate =
  """<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
  - <title>SFDX Developer Documentation Redirection</title>
  + <title>SFDX Developer Documentation Redirect</title>
  <meta http-equiv="refresh" content="0;URL='./%%packageVersion%%/index.html'"/>
  </head>
  <body/>
  @@ -23,10 +23,11 @@ node {
  error "The release type is not set."
  }
  - endPointUrlEnvName = "__S3_${env.releaseType}_ENDPOINT_URL".toString()
  - bucketEnvName = "__S3_${env.releaseType}_BUCKET".toString()
  - credentialsIdEnvName = "__S3_${env.releaseType}_CREDENTIALS_ID".toString()
  - regionEnvName = "__S3_${env.releaseType}_REGION".toString()
  + const releaseProperites = getPropertiesFileForReleaseStage()
  + endPointUrlEnvName = releaseProperites["S3_${env.releaseType}_ENDPOINT_URL"].toString()
  + bucketEnvName = releaseProperites["S3_${env.releaseType}_BUCKET"].toString()
  + credentialsIdEnvName = releaseProperites["S3_${env.releaseType}_CREDENTIALS_ID"].toString()
  + regionEnvName = releaseProperites["S3_${env.releaseType}_REGION"].toString()
  if (!env[endPointUrlEnvName]) {
  error "Missing aws endpoint url"
  