debian: add missing files to copyright

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

debian/copyright

@@ -28,7 +28,7 @@ Files: chomp.c
 Copyright: 2014-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC
 
-Files: conio.h
+Files: conio.?
 Copyright: 2009-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC
 
@@ -36,6 +36,18 @@ Files: dir.c
 Copyright: 2008-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC
 
+Files: fopenf.c fremove.c systemf.c truncatef.c
+Copyright: 2021 Joachim Wiberg <troglobit@gmail.com>
+License: ISC
+
+Files: fparseln.c
+Copyright: 1997 Christos Zoulas
+License: BSD-2-clause
+
+Files: fsendfile.c
+Copyright: 2013 Tobias Waldekranz <tobias@waldekranz.com>
+License: MIT
+
 Files: lfile.c
 Copyright: 2015-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC
@@ -48,6 +60,14 @@ Files: pidfile.c
 Copyright: 1999 The NetBSD Foundation, Inc.
 License: BSD-2-clause
 
+Files: pidfilefn.c
+Copyright: 2009-2021 Joachim Wiberg <troglobit@gmail.com>
+License: ISC
+
+Files: progress.c
+Copyright: 2012-2021 Joachim Wiberg <troglobit@gmail.com>
+License: ISC
+
 Files: queue.h
 Copyright: 1991, 1993 The Regents of the University of California.
 License: BSD-3-clause
@@ -68,6 +88,10 @@ Files: strlcat.c strlcpy.c
 Copyright: 1998, 2015 Todd C. Miller <Todd.Miller@courtesan.com>
 License: MIT
 
+Files: strlite.h
+Copyright: 2008-2021 Joachim Wiberg <troglobit@gmail.com>
+License: MIT
+
 Files: strmatch.c
 Copyright: 2009-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC
@@ -92,6 +116,10 @@ Files: tree.h
 Copyright: 2002 Niels Provos <provos@citi.umich.edu>
 License: BSD-2-clause
 
+Files: which.c
+Copyright: 2017-2021 Joachim Wiberg <troglobit@gmail.com>
+License: ISC
+
 Files: yorn.c
 Copyright: 2009-2021 Joachim Wiberg <troglobit@gmail.com>
 License: ISC