*: hopefully all setup_common_bufsiz() are in place

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/coreutils/stat.c b/coreutils/stat.c
index 78df9c9..ddcfcf2 100644
--- a/coreutils/stat.c
+++ b/coreutils/stat.c
@@ -158,10 +158,9 @@
 	/* coreutils 6.3 compat: */
 
 	/*static char buf[sizeof("YYYY-MM-DD HH:MM:SS.000000000")] ALIGN1;*/
-#define        buf bb_common_bufsiz1
-#define sizeof_buf COMMON_BUFSIZE
-
-	strcpy(strftime_YYYYMMDDHHMMSS(buf, sizeof_buf, &t), ".000000000");
+#define buf bb_common_bufsiz1
+	setup_common_bufsiz();
+	strcpy(strftime_YYYYMMDDHHMMSS(buf, COMMON_BUFSIZE, &t), ".000000000");
 	return buf;
 #undef buf
 }