Index: trunk/pstamp/src/pstampdump.c
===================================================================
--- trunk/pstamp/src/pstampdump.c	(revision 18378)
+++ trunk/pstamp/src/pstampdump.c	(revision 20112)
@@ -29,9 +29,14 @@
 }
 
+static void
+usage(char *program_name)
+{
+    fprintf(stderr, "usage: %s filename\n", program_name);
+    exit(1);
+}
 int main(int argc, char *argv[])
 {
     if (argc != 2) {
-        fprintf(stderr, "usage: %s filename\n", argv[0]);
-        return 1;
+        usage(argv[0]);
     }