add INIT_G()'s. No code changes.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

coreutils/tail.c

@@ -62,6 +62,7 @@ struct globals {
 	bool exitcode;
 } FIX_ALIASING;
 #define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { } while (0)
 
 static void tail_xprint_header(const char *fmt, const char *filename)
 {
@@ -120,6 +121,8 @@ int tail_main(int argc, char **argv)
 	int *fds;
 	const char *fmt;
 
+	INIT_G();
+
 #if ENABLE_INCLUDE_SUSv2 || ENABLE_FEATURE_FANCY_TAIL
 	/* Allow legacy syntax of an initial numeric option without -n. */
 	if (argv[1] && (argv[1][0] == '+' || argv[1][0] == '-')