Typo in usage of pg_xlogdump

diff --git a/contrib/pg_xlogdump/pg_xlogdump.c b/contrib/pg_xlogdump/pg_xlogdump.c
index 0706463..6a5a5f1 100644
--- a/contrib/pg_xlogdump/pg_xlogdump.c
+++ b/contrib/pg_xlogdump/pg_xlogdump.c
@@ -393,7 +393,7 @@ usage(void)
 	printf("                         (default: ./pg_xlog)\n");
 	printf("  -r, --rmgr=RMGR        only show records generated by resource manager RMGR\n");
 	printf("                         use --rmgr=list to list valid resource manager names\n");
-	printf("  -s, --start=RECPTR     stop reading at log position RECPTR\n");
+	printf("  -s, --start=RECPTR     start reading at log position RECPTR\n");
 	printf("  -t, --timeline=TLI     timeline from which to read log records\n");
 	printf("                         (default: 1 or the value used in STARTSEG)\n");
 	printf("  -x, --xid=XID          only show records with TransactionId XID\n");