diff.c: add white space mode to move detection that allows indent changes

diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt
index 80e29e39854b8e1bfda5c1c5943f272fea85b8e3..143acd9417ed60f377ed357cc6db9717628f941e 100644 (file)
--- a/Documentation/diff-options.txt
+++ b/Documentation/diff-options.txt
@@ -307,6 +307,11 @@ ignore-space-change::
 ignore-all-space::
        Ignore whitespace when comparing lines. This ignores differences
        even if one line has whitespace where the other line has none.
+allow-indentation-change::
+       Initially ignore any white spaces in the move detection, then
+       group the moved code blocks only into a block if the change in
+       whitespace is the same per line. This is incompatible with the
+       other modes.
 --
 
 --word-diff[=<mode>]::