tinydm-set-session: fix indentation (MR 21)

tinydm-set-session.sh

@@ -2,10 +2,12 @@
 # Copyright 2020 Oliver Smith
 # Copyright 2020 Clayton Craft
 # SPDX-License-Identifier: GPL-3.0-or-later
+
 exit_usage() {
 	echo "usage: $0 [-f] -s session-file"
 	exit 1
 }
+
 force=false
 while getopts fs:h opt; do
         case "$opt" in
@@ -19,7 +21,7 @@ done
 
 if ! [ -e "$session" ]; then
 	echo "tinydm: Session file does not exist: $session"
-        exit 1
+	exit 1
 fi
 
 mkdir -p /var/lib/tinydm
@@ -34,8 +36,8 @@ fi
 
 if [ -e "$session_old" ] && ! $force; then
 	echo "tinydm: Session already set to: $session_old"
-        echo "tinydm: To change it, run: 'tinydm-set-session -f -s $session'"
-        exit 0
+	echo "tinydm: To change it, run: 'tinydm-set-session -f -s $session'"
+	exit 0
 fi
 
 ln -sf "$session" "$target"