[PATCH v4 3/4] Fix various issues found in comments

["Elijah Newren via GitGitGadget" <gitgitgadget@gmail.com>]

From: Elijah Newren <newren@gmail.com>

A random hodge-podge of incorrect or out-of-date comments that I found:

  * t6423 had a comment that has referred to the wrong test for years;
    fix it to refer to the right one.
  * diffcore-rename had a FIXME comment meant to remind myself to
    investigate if I could make another code change.  I later
    investigated and removed the FIXME, but while cherry-picking the
    patch to submit upstream I missed the later update.  Remove the
    comment now.
  * merge-ort had the early part of a comment for a function; I had
    meant to include the more involved description when I updated the
    function.  Update the comment now.

Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
---
 diffcore-rename.c                   | 2 +-
 merge-ort.c                         | 8 +++++---
 t/t6423-merge-rename-directories.sh | 2 +-
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/diffcore-rename.c b/diffcore-rename.c
index e333a6d64791..35378d84e8f1 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -1543,7 +1543,7 @@ void diffcore_rename_extended(struct diff_options *options,
 			/* all the usual ones need to be kept */
 			diff_q(&outq, p);
 		else
-			/* no need to keep unmodified pairs; FIXME: remove earlier? */
+			/* no need to keep unmodified pairs */
 			pair_to_free = p;
 
 		if (pair_to_free)
diff --git a/merge-ort.c b/merge-ort.c
index 061f15701359..2ec382e292a6 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -2533,7 +2533,7 @@ static int compare_pairs(const void *a_, const void *b_)
 	return strcmp(a->one->path, b->one->path);
 }
 
-/* Call diffcore_rename() to compute which files have changed on given side */
+/* Call diffcore_rename() to update deleted/added pairs into rename pairs */
 static void detect_regular_renames(struct merge_options *opt,
 				   unsigned side_index)
 {
@@ -2586,8 +2586,10 @@ static void detect_regular_renames(struct merge_options *opt,
 }
 
 /*
- * Get information of all renames which occurred in 'side_pairs', discarding
- * non-renames.
+ * Get information of all renames which occurred in 'side_pairs', making use
+ * of any implicit directory renames in side_dir_renames (also making use of
+ * implicit directory renames rename_exclusions as needed by
+ * check_for_directory_rename()).  Add all (updated) renames into result.
  */
 static int collect_renames(struct merge_options *opt,
 			   struct diff_queue_struct *result,
diff --git a/t/t6423-merge-rename-directories.sh b/t/t6423-merge-rename-directories.sh
index be84d22419d9..e834b7e6efe0 100755
--- a/t/t6423-merge-rename-directories.sh
+++ b/t/t6423-merge-rename-directories.sh
@@ -454,7 +454,7 @@ test_expect_success '1f: Split a directory into two other directories' '
 #   the directory renamed, but the files within it. (see 1b)
 #
 #   If renames split a directory into two or more others, the directory
-#   with the most renames, "wins" (see 1c).  However, see the testcases
+#   with the most renames, "wins" (see 1f).  However, see the testcases
 #   in section 2, plus testcases 3a and 4a.
 ###########################################################################
 
-- 
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