*: hopefully all setup_common_bufsiz() are in place

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

archival/tar.c

@@ -162,6 +162,7 @@
 
 
 #define block_buf bb_common_bufsiz1
+#define INIT_G() do { setup_common_bufsiz(); } while (0)
 
 
 #if ENABLE_FEATURE_TAR_CREATE
@@ -964,6 +965,7 @@ int tar_main(int argc UNUSED_PARAM, char **argv)
 #if ENABLE_FEATURE_TAR_LONG_OPTIONS && ENABLE_FEATURE_TAR_FROM
 	llist_t *excludes = NULL;
 #endif
+	INIT_G();
 
 	/* Initialise default values */
 	tar_handle = init_handle();