Update copyright year to 2018.

git-svn-id: https://llvm.org/svn/llvm-project/clang-tools-extra/trunk@334936 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/LICENSE.TXT b/LICENSE.TXT
index 12fb67d..b886535 100644
--- a/LICENSE.TXT
+++ b/LICENSE.TXT
@@ -4,7 +4,7 @@
 University of Illinois/NCSA
 Open Source License
 
-Copyright (c) 2007-2016 University of Illinois at Urbana-Champaign.
+Copyright (c) 2007-2018 University of Illinois at Urbana-Champaign.
 All rights reserved.
 
 Developed by:
diff --git a/clang-tidy-vs/ClangTidy/license.txt b/clang-tidy-vs/ClangTidy/license.txt
index b452ca2..547f6a4 100644
--- a/clang-tidy-vs/ClangTidy/license.txt
+++ b/clang-tidy-vs/ClangTidy/license.txt
@@ -4,7 +4,7 @@
 University of Illinois/NCSA
 Open Source License
 
-Copyright (c) 2007-2016 University of Illinois at Urbana-Champaign.
+Copyright (c) 2007-2018 University of Illinois at Urbana-Champaign.
 All rights reserved.
 
 Developed by: