Diff: -l<num> to limit rename/copy detection.

[git.git] / Documentation / diff-options.txt

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 48cf93cc388fa354da58d00af7aba3020ca478d0..616d4a41220953236749fe6c0abcab2be57d7456 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -35,6 +35,13 @@
        copy.  This is a very expensive operation for large
        projects, so use it with caution.
 
+-l<num>::
+       -M and -C options require O(n^2) processing time where n
+       in the number of potential rename/copy targets.  This
+       option prevents rename/copy detection from running if
+       the number of rename/copy targets exceed the specified
+       number.
+
 -S<string>::
        Look for differences that contains the change in <string>.