Salt seems to have an issue with tabs in this file ...

apt/sources.list.Debian.buster

@@ -2,16 +2,16 @@
 # /etc/apt/sources.list (Salt managed)
 #
 
-deb	http://deb.debian.org/debian/ buster main non-free contrib
-deb-src	http://deb.debian.org/debian/ buster main non-free contrib
+deb http://deb.debian.org/debian/ buster main non-free contrib
+deb-src http://deb.debian.org/debian/ buster main non-free contrib
 
-deb	http://security.debian.org/debian-security buster/updates main contrib non-free
-deb-src	http://security.debian.org/debian-security buster/updates main contrib non-free
+deb http://security.debian.org/debian-security buster/updates main contrib non-free
+deb-src http://security.debian.org/debian-security buster/updates main contrib non-free
 
 # buster-updates, previously known as 'volatile'
-deb	http://deb.debian.org/debian/ buster-updates main contrib non-free
-deb-src	http://deb.debian.org/debian/ buster-updates main contrib non-free
+deb http://deb.debian.org/debian/ buster-updates main contrib non-free
+deb-src http://deb.debian.org/debian/ buster-updates main contrib non-free
 
 # buster-backports, previously on backports.debian.org
-deb	http://deb.debian.org/debian/ buster-backports main contrib non-free
-deb-src	http://deb.debian.org/debian/ buster-backports main contrib non-free
+deb http://deb.debian.org/debian/ buster-backports main contrib non-free
+deb-src http://deb.debian.org/debian/ buster-backports main contrib non-free

apt/sources.list.Debian.jessie

@@ -2,14 +2,12 @@
 # /etc/apt/sources.list (Salt managed)
 #
 
-deb	http://deb.debian.org/debian/ jessie main non-free contrib
-deb-src	http://deb.debian.org/debian/ jessie main non-free contrib
+deb http://deb.debian.org/debian/ jessie main non-free contrib
+deb-src http://deb.debian.org/debian/ jessie main non-free contrib
 
-deb	http://security.debian.org/ jessie/updates main contrib non-free
-deb-src	http://security.debian.org/ jessie/updates main contrib non-free
+deb http://security.debian.org/ jessie/updates main contrib non-free
+deb-src http://security.debian.org/ jessie/updates main contrib non-free
 
 # jessie-updates, previously known as 'volatile'
-deb	http://deb.debian.org/debian/ jessie-updates main contrib non-free
-deb-src	http://deb.debian.org/debian/ jessie-updates main contrib non-free
-
-# Jessie Backports don't exist no more
+deb http://deb.debian.org/debian/ jessie-updates main contrib non-free
+deb-src http://deb.debian.org/debian/ jessie-updates main contrib non-free

apt/sources.list.Debian.stretch

@@ -2,16 +2,16 @@
 # /etc/apt/sources.list (Salt managed)
 #
 
-deb	http://deb.debian.org/debian/ stretch main non-free contrib
-deb-src	http://deb.debian.org/debian/ stretch main non-free contrib
+deb http://deb.debian.org/debian/ stretch main non-free contrib
+deb-src http://deb.debian.org/debian/ stretch main non-free contrib
 
-deb	http://security.debian.org/debian-security stretch/updates main contrib non-free
-deb-src	http://security.debian.org/debian-security stretch/updates main contrib non-free
+deb http://security.debian.org/debian-security stretch/updates main contrib non-free
+deb-src http://security.debian.org/debian-security stretch/updates main contrib non-free
 
 # stretch-updates, previously known as 'volatile'
-deb	http://deb.debian.org/debian/ stretch-updates main contrib non-free
-deb-src	http://deb.debian.org/debian/ stretch-updates main contrib non-free
+deb http://deb.debian.org/debian/ stretch-updates main contrib non-free
+deb-src http://deb.debian.org/debian/ stretch-updates main contrib non-free
 
 # stretch-backports, previously on backports.debian.org
-deb	http://deb.debian.org/debian/ stretch-backports main contrib non-free
-deb-src	http://deb.debian.org/debian/ stretch-backports main contrib non-free
+deb http://deb.debian.org/debian/ stretch-backports main contrib non-free
+deb-src http://deb.debian.org/debian/ stretch-backports main contrib non-free

apt/sources.list.Raspbian.stretch

@@ -2,5 +2,5 @@
 # /etc/apt/sources.list (Salt managed)
 #
 
-deb	http://debian.bio.lmu.de/raspbian/raspbian/ stretch main contrib non-free rpi
-deb-src	http://debian.bio.lmu.de/raspbian/raspbian/ stretch main contrib non-free rpi
+deb http://debian.bio.lmu.de/raspbian/raspbian/ stretch main contrib non-free rpi
+deb-src http://debian.bio.lmu.de/raspbian/raspbian/ stretch main contrib non-free rpi