--- a/help/diffs.txt	Thu Dec 03 20:41:43 2009 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-Mercurial's default format for showing changes between two versions of
-a file is compatible with the unified format of GNU diff, which can be
-used by GNU patch and many other standard tools.
-
-While this standard format is often enough, it does not encode the
-following information:
-
-- executable status and other permission bits
-- copy or rename information
-- changes in binary files
-- creation or deletion of empty files
-
-Mercurial also supports the extended diff format from the git VCS
-which addresses these limitations. The git diff format is not produced
-by default because a few widespread tools still do not understand this
-format.
-
-This means that when generating diffs from a Mercurial repository
-(e.g. with "hg export"), you should be careful about things like file
-copies and renames or other things mentioned above, because when
-applying a standard diff to a different repository, this extra
-information is lost. Mercurial's internal operations (like push and
-pull) are not affected by this, because they use an internal binary
-format for communicating changes.
-
-To make Mercurial produce the git extended diff format, use the --git
-option available for many commands, or set 'git = True' in the [diff]
-section of your hgrc. You do not need to set this option when
-importing diffs in this format or using them in the mq extension.