copyright updates: adjust year ranges
diff --git a/docs/curl-config.1 b/docs/curl-config.1
index 7614daa..84fd057 100644
--- a/docs/curl-config.1
+++ b/docs/curl-config.1
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
diff --git a/docs/libcurl/libcurl-multi.3 b/docs/libcurl/libcurl-multi.3
index 58dd932..5176aeb 100644
--- a/docs/libcurl/libcurl-multi.3
+++ b/docs/libcurl/libcurl-multi.3
@@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
-.\" * Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
+.\" * Copyright (C) 1998 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
diff --git a/lib/smb.h b/lib/smb.h
index d1c45e2..136a89c 100644
--- a/lib/smb.h
+++ b/lib/smb.h
@@ -8,7 +8,7 @@
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2014, Bill Nagel <wnagel@tycoint.com>, Exacq Technologies
- * Copyright (C) 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 2018 - 2020, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
