Docs feedback: Video shows old environment variables for historic Secret Detection

In Full History Secret Detection documentation, the written documentation describes using the environment variable SECRET_DETECTION_HISTORIC_SCAN to toggle historic scanning. The video walkthrough, however, describes using SAST_GITLEAKS_HISTORIC_SCANinstead. It's not clear if this is another valid way to enable this feature, if it's an out of date video which describes a deprecated variable, or something else entirely.