reset shmlogname when disabling the log

This makes the i3-dump-log error message more helpful.

diff --git a/src/log.c b/src/log.c
index 5530f66f9f5358681e45a1bcdbf5150494f53548..68131af88daae542cd9f2c792bf1e2a3331c8768 100644 (file)
--- a/src/log.c
+++ b/src/log.c
@@ -167,6 +167,7 @@ void close_logbuffer(void) {
     close(logbuffer_shm);
     shm_unlink(shmlogname);
     logbuffer = NULL;
+    shmlogname = "";
 }
 
 /*