install copyright file

Makefile

@@ -22,7 +22,8 @@ all: xmem
 
 install: all
 	/usr/bin/install -c -m 0555 xmem $(DESTDIR)$(BINDIR)
-	/usr/bin/install -c -m 0444 xmem.1 $(DESTDIR)$(MANDIR)
+	/usr/bin/install -c -m 0444 xmem.0 $(DESTDIR)$(MANDIR)
 	/usr/bin/install -c -m 0644 XMem.ad $(DESTDIR)/usr/local/lib/X11/app-defaults/XMem
 	/usr/bin/install -d -m 0755 $(DESTDIR)/usr/local/share/xmem/
 	/usr/bin/install -c -m 0644 xmem.bit $(DESTDIR)/usr/local/share/xmem/
+	/usr/bin/install -c -m 0644 copyright $(DESTDIR)/usr/local/share/xmem/

copyright

@@ -0,0 +1,37 @@
+This package was debianized by Daniel Baumann <daniel@debian.org> on
+Sun, 22 Jan 2006 14:26:00 +0100.
+
+This xmem was resurrected from the xfree86 sources of the bo release.
+
+Copyright Holder: X Consortium
+
+License:
+
+	Copyright (C) 1987 X Consortium
+
+	Permission is hereby granted, free of charge, to any person obtaining a
+	copy of this software and associated documentation files (the
+	"Software"), to deal in the Software without restriction, including
+	without limitation the rights to use, copy, modify, merge, publish,
+	distribute, sublicense, and/or sell copies of the Software, and to
+	permit persons to whom the Software is furnished to do so, subject to
+	the following conditions:
+
+	The above copyright notice and this permission notice shall be included
+	in all copies or substantial portions of the Software.
+
+	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+	IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+	OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+	ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+	OTHER DEALINGS IN THE SOFTWARE.
+
+	Except as contained in this notice, the name of the X Consortium shall
+	not be used in advertising or otherwise to promote the sale, use or
+	other dealings in this Software without prior written authorization from
+	the X Consortium.
+
+The Debian packaging is (C) 2006-2007, Daniel Baumann <daniel@debian.org> and
+is licensed under the GPL, see `/usr/share/common-licenses/GPL'.

xmem.c

@@ -1,7 +1,8 @@
 /*
  * xmem - display memory/swap usage utility for X
  *
- * Copyright 2017 Christian Barthel <bch@onfire.org>
+ * Updated by Christian Barthel <bch@onfire.org>
+ *
  * Copyright 1989 Massachusetts Institute of Technology
  *
  * $XConsortium: xload.c,v 1.36 91/05/24 16:57:46 converse Exp $