gbranden pushed a commit to branch master
in repository groff.

commit 826369c366a2396cc3dec3a85e810f7a55bf523d
Author: G. Branden Robinson <[email protected]>
AuthorDate: Thu Dec 18 21:12:41 2025 -0600

    [glilypond]: Drop ersatz copyright symbol '(C)'.
    
    Software developers have long labored under the no-longer-correct
    misconception that omitting a copyright symbol from one's notice was a
    fatal defect that effectively placed the work in the public domain.
    That stopped being true as of 1 March 1989.[1]  Further, prior to
    guidance issued by the U.S. Copyright Office in the decades since, the
    use of "(C)" as a substitute for a copyright sign _may not have
    sufficed_ to prevent the copyright notice from being regarded as
    defective.  The Copyright Office, then and now, prefers the abbreviation
    "copr." when © is typographically unavailable.[ibid.]  Nowadays, its
    advice is that "c" (note lowercase) is an "acceptable variant", that
    _may_ retain the efficacy of the copyright notice.  The word
    "copyright", spelled out in full, also suffices per that resource, and
    is already present in this notice.
    
    [1] https://www.copyright.gov/circs/circ03.pdf
---
 contrib/glilypond/README.txt             | 2 +-
 contrib/glilypond/examples/example.groff | 2 +-
 contrib/glilypond/glilypond.1.man        | 2 +-
 contrib/glilypond/glilypond.am           | 2 +-
 contrib/glilypond/glilypond.pl           | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/contrib/glilypond/README.txt b/contrib/glilypond/README.txt
index 77b01542d..664c796b6 100644
--- a/contrib/glilypond/README.txt
+++ b/contrib/glilypond/README.txt
@@ -1,4 +1,4 @@
-    Copyright (C) 2013-2020 Free Software Foundation, Inc.
+    Copyright 2013-2020 Free Software Foundation, Inc.
 
     Written by Bernd Warken <[email protected]>
 
diff --git a/contrib/glilypond/examples/example.groff 
b/contrib/glilypond/examples/example.groff
index f274c2787..9ada928b4 100644
--- a/contrib/glilypond/examples/example.groff
+++ b/contrib/glilypond/examples/example.groff
@@ -7,7 +7,7 @@ glilypond - integrate lilypond parts into groff files
 
 This file was written by Bernd Warken <groff\-bernd.warken\[email protected]>.
 
-Copyright (C) 2013-2020 Free Software Foundation, Inc.
+Copyright 2013-2020 Free Software Foundation, Inc.
 
 This file is part of glilypond.
 
diff --git a/contrib/glilypond/glilypond.1.man 
b/contrib/glilypond/glilypond.1.man
index ebb675025..350f2bbd7 100644
--- a/contrib/glilypond/glilypond.1.man
+++ b/contrib/glilypond/glilypond.1.man
@@ -11,7 +11,7 @@ documents
 .\" Legal Terms
 .\" ====================================================================
 .\"
-.\" Copyright (C) 2013-2020 Free Software Foundation, Inc.
+.\" Copyright 2013-2020 Free Software Foundation, Inc.
 .\"
 .\" This file is part of glilypond.
 .\"
diff --git a/contrib/glilypond/glilypond.am b/contrib/glilypond/glilypond.am
index c10864380..dd5b29b1c 100644
--- a/contrib/glilypond/glilypond.am
+++ b/contrib/glilypond/glilypond.am
@@ -1,6 +1,6 @@
 # Automake rules for 'glilypond'
 #
-# Copyright (C) 2013-2020 Free Software Foundation, Inc.
+# Copyright 2013-2020 Free Software Foundation, Inc.
 # Written by Werner Lemberg <[email protected]> and
 # Bernd Warken <[email protected]>.
 # Automake migration by Bertrand Garrigues
diff --git a/contrib/glilypond/glilypond.pl b/contrib/glilypond/glilypond.pl
index 7a2c9790f..70be073cf 100755
--- a/contrib/glilypond/glilypond.pl
+++ b/contrib/glilypond/glilypond.pl
@@ -30,7 +30,7 @@ our $Legalese;
   use constant LICENSE => q*
 glilypond - integrate 'lilypond' into 'groff' files
 
-Copyright (C) 2013-2020 Free Software Foundation, Inc.
+Copyright 2013-2020 Free Software Foundation, Inc.
   Written by Bernd Warken <[email protected]>
 
 This file is part of glilypond.

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