clarify previous wrt when admin password is set to a random value

.env-dist

@@ -12,7 +12,8 @@
 # ADMIN_USER_* settings are applied on every startup.
 
 # Set admin user password to this value. If not set, random password will be
-# generated on first launch, look for it in the 'app' container logs.
+# generated if default password is being used, look for it in the 'app'
+# container logs.
 #ADMIN_USER_PASS=
 
 # Sets admin user access level to this value.