directory-rename-detection.txt: update references to regression tests

The regression tests for directory rename detection were renamed from t6043 to t6423 in commit 919df31955 ("Collect merge-related tests to t64xx", 2020-08-10); update this file to match. Also, add a small clarification to nearby text while we're at it. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Elijah Newren committed Oct 15, 2020 at 20:46 UTC b9718d0cc98dcdf0012ba0bef8112068c6b2e1e4
1 file changed +4 -3
Documentation/technical/directory-rename-detection.txt
+4 -3
@@ -18,7 +18,8 @@ It is perhaps easiest to start with an example:
18 More interesting possibilities exist, though, such as:
19
20 * one side of history renames x -> z, and the other renames some file to
21 - x/e, causing the need for the merge to do a transitive rename.
21 + x/e, causing the need for the merge to do a transitive rename so that
22 + the rename ends up at z/e.
23
24 * one side of history renames x -> z, but also renames all files within x.
25 For example, x/a -> z/alpha, x/b -> z/bravo, etc.
@@ -35,7 +36,7 @@ More interesting possibilities exist, though, such as:
36 directory itself contained inner directories that were renamed to yet
37 other locations).
38
38 - * combinations of the above; see t/t6043-merge-rename-directories.sh for
39 + * combinations of the above; see t/t6423-merge-rename-directories.sh for
40 various interesting cases.
41
42 Limitations -- applicability of directory renames
@@ -62,7 +63,7 @@ directory rename detection applies:
63 Limitations -- detailed rules and testcases
64 -------------------------------------------
65
65 -t/t6043-merge-rename-directories.sh contains extensive tests and commentary
66 +t/t6423-merge-rename-directories.sh contains extensive tests and commentary
67 which generate and explore the rules listed above. It also lists a few
68 additional rules:
69