Given the (tiny) change made to UCB's original, the lead-in might best read
"Based on the UCB file whose corrected copyright information appears below."

    @dashdashado

On Fri, Feb 16, 2018 at 5:04 PM, Paul Eggert <eggert@cs.ucla.edu> wrote:
* newstrftime.3: Remove "(c)" that is a standin for a copyright
symbol.  Though the copyright symbol has legal standing,
parenthesized "c" does not.
---
 newstrftime.3 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newstrftime.3 b/newstrftime.3
index 8f1be34..69064dc 100644
--- a/newstrftime.3
+++ b/newstrftime.3
@@ -1,5 +1,5 @@
 .\" Based on the UCB file whose copyright information appears below.
-.\" Copyright (c) 1989, 1991 The Regents of the University of California.
+.\" Copyright 1989, 1991 The Regents of the University of California.
 .\" All rights reserved.
 .\"
 .\" This code is derived from software contributed to Berkeley by
--
2.14.3