diff-delta: set size out-parameter to 0 for NULL delta

diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt
index 61876dbc335e240b8842aba3dd4e3fd8a54e574a..79a00d2a4abd6f7191f2639185e199fa85f6289b 100644 (file)
--- a/Documentation/merge-options.txt
+++ b/Documentation/merge-options.txt
@@ -102,6 +102,8 @@ merge.
 +
 With --no-squash perform the merge and commit the result. This
 option can be used to override --squash.
++
+With --squash, --commit is not allowed, and will fail.
 
 -s <strategy>::
 --strategy=<strategy>::