[PATCH v2 6/7] technical/shallow: describe the relationship with replace refs

[Johannes Schindelin <johannes.schindelin@gmx.de>]

Now that grafts are deprecated, we should start to assume that readers
have no idea what grafts are. So it makes more sense to describe the
"shallow" feature in terms of replace refs.

Suggested-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 Documentation/technical/shallow.txt | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/technical/shallow.txt b/Documentation/technical/shallow.txt
index 5183b154229..b3ff23c25f6 100644
--- a/Documentation/technical/shallow.txt
+++ b/Documentation/technical/shallow.txt
@@ -9,14 +9,17 @@ these commits have no parents.
 *********************************************************
 
 The basic idea is to write the SHA-1s of shallow commits into
-$GIT_DIR/shallow, and handle its contents like the contents
-of $GIT_DIR/info/grafts (with the difference that shallow
-cannot contain parent information).
-
-This information is stored in a new file instead of grafts, or
-even the config, since the user should not touch that file
-at all (even throughout development of the shallow clone, it
-was never manually edited!).
+$GIT_DIR/shallow, and handle its contents similar to replace
+refs (with the difference that shallow does not actually
+create those replace refs) and very much like the deprecated
+graft file (with the difference that shallow commits will
+always have their parents grafted away, not replaced by
+different parents).
+
+This information is stored in a special-purpose file because the
+user should not touch that file at all (even throughout
+development of the shallow clone, it was never manually
+edited!).
 
 Each line contains exactly one SHA-1. When read, a commit_graft
 will be constructed, which has nr_parent < 0 to make it easier
-- 
2.17.0.windows.1.4.g7e4058d72e3