[README] Drop /var from conventional XDG_RUNTIME_DIR value.

wq

README.md

@@ -48,7 +48,7 @@ These lovely utilities are often already available on many `sway` setups.
      order += "run_watch screenrecord"
 
      run_watch screenrecord {
-       pidfile = "/var/run/user/1000/screenrecord.pid"
+       pidfile = "/run/user/1000/screenrecord.pid"
        format = "🎥"
        format_down = ""
     }

screenrecord.sh

@@ -23,11 +23,11 @@
 #
 # Author Lorenzo Cogotti, The DoubleFourteen Code Forge
 
-pidfile="/var/run/user/$(id -u)/screenrecord.pid"
+pidfile="$XDG_RUNTIME_DIR/screenrecord.pid"
 filename="$(xdg-user-dir VIDEOS)/ScreenCast_$(date +%F_%T).mp4"
 
 isrunning() {
-    pid=$(cat "$pidfile" 2>/dev/null)
+    pid=$(2>/dev/null <"$pidfile")
     test $? && kill -s 0 -- "$pid" 2>/dev/null
     return $?
 }