Add util.c:screen_init() to probe screen size once per boot

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

src/finit.c

@@ -44,6 +44,7 @@
 #include "sig.h"
 #include "sm.h"
 #include "tty.h"
+#include "util.h"
 #include "utmp-api.h"
 #include "watchdog.h"
 
@@ -228,6 +229,9 @@ int main(int argc, char* argv[])
 	if (getpid() != 1)
 		return client(argc, argv);
 
+	/* Set up canvas */
+	screen_init();
+
 	/*
 	 * In case of emergency.
 	 */