Fix GCC 9 string trunction warning

- Increase size of resulting path buffer, unlikely a real problem
- Check return value from snprintf() to detect errors and truncation
- Add logit() function wrapper to initctl, maps to _e()/_d()/_pe()

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

src/pid.c

@@ -96,7 +96,7 @@ char *pid_get_name(pid_t pid, char *name, size_t len)
 char *pid_file(svc_t *svc)
 {
 	char fn[MAX_ARG_LEN];
-	static char path[MAX_ARG_LEN];
+	static char path[256];
 
 	if (svc->pidfile[0]) {
 		if (svc->pidfile[0] == '!')