Scrub up some function prototypes.
 -Erik
diff --git a/coreutils/tail.c b/coreutils/tail.c
index 90cc2a6..5e5fbc1 100644
--- a/coreutils/tail.c
+++ b/coreutils/tail.c
@@ -51,7 +51,7 @@
 	taillen += len;
 }
 
-static void tailbuf_trunc()
+static void tailbuf_trunc(void)
 {
 	char *s;
 	s = memchr(tailbuf, '\n', taillen);