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-rw-r--r--lisp/vc-sccs.el4
1 files changed, 4 insertions, 0 deletions
diff --git a/lisp/vc-sccs.el b/lisp/vc-sccs.el
index 44b2b28947..afbf4e1545 100644
--- a/lisp/vc-sccs.el
+++ b/lisp/vc-sccs.el
@@ -24,6 +24,10 @@
;;; Commentary:
+;; Proper function of the SCCS diff commands requires the shellscript vcdiff
+;; to be installed somewhere on Emacs's path for executables.
+;;
+
;;; Code:
(eval-when-compile