Trivial.  Still need to submit this.

Index: gdb-6.1/gdb/tracepoint.c
===================================================================
--- gdb-6.1.orig/gdb/tracepoint.c	2004-04-05 13:26:43.000000000 -0400
+++ gdb-6.1/gdb/tracepoint.c	2004-04-05 13:26:45.000000000 -0400
@@ -853,6 +853,8 @@ read_actions (struct tracepoint *t)
       else
 	line = gdb_readline (0);
 
+      if (line == NULL || *line == EOF)
+	break;
       linetype = validate_actionline (&line, t);
       if (linetype == BADLINE)
 	continue;		/* already warned -- collect another line */
