modem: use XDG_CONFIG_HOME to save logs

Signed-off-by: Miles Alan <m@milesalan.com>

scripts/modem/sxmo_modemcall.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 PID=$$
-LOGDIR=/home/$USER/.sxmo
+LOGDIR="$XDG_CONFIG_HOME"/sxmo/modem
 trap "kill 0" SIGINT
 
 err() {

scripts/modem/sxmo_modemlog.sh

@@ -1,2 +1,3 @@
 #!/usr/bin/env sh
-st -fn "Terminus-14" -e tail -f ~/.sxmo/modemlog.tsv
+LOGDIR="$XDG_CONFIG_HOME"/sxmo/modem
+st -fn "Terminus-14" -e tail -f "$LOGDIR"/modemlog.tsv

scripts/modem/sxmo_modemmonitor.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 TIMEOUT=3
-LOGDIR=/home/$USER/.sxmo
+LOGDIR="$XDG_CONFIG_HOME"/sxmo/modem
 ACTIVECALL="NONE"
 trap "kill 0" SIGINT
 

scripts/modem/sxmo_modemtext.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 EDITOR=vis
-LOGDIR=/home/$USER/.sxmo
+LOGDIR="$XDG_CONFIG_HOME"/sxmo/modem
 
 err() {
 	echo $1 | dmenu -fn Terminus-20 -c -l 10
@@ -90,4 +90,4 @@ main() {
 	tailtextlog "$(echo $NUMBER | sed 's/ logfile//g')"
 }
 
-main
+main