1 files changed, 0 insertions, 1 deletions
diff --git a/m4/diff.m4 b/m4/diff.m4
index 1267ef5..44996fb 100644
--- a/m4/diff.m4
+++ b/m4/diff.m4
@@ -1,5 +1,4 @@
 dnl file      : m4/diff.m4
-dnl copyright : Copyright (c) 2009-2019 Code Synthesis Tools CC
 dnl license   : GNU GPL v2; see accompanying LICENSE file
 dnl
 dnl DIFF_TOOL