diffcore-rename: rename num_create to num_destinations

Our main data structures are rename_src and rename_dst.  For counters of
these data structures, num_sources and num_destinations seem natural;
definitely more so than using num_create for the latter.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diffcore-rename.c

@@ -434,7 +434,7 @@ static void record_if_better(struct diff_score m[], struct diff_score *o)
  * 1 if we need to disable inexact rename detection;
  * 2 if we would be under the limit if we were given -C instead of -C -C.
  */
-static int too_many_rename_candidates(int num_create,
+static int too_many_rename_candidates(int num_destinations,
 				      struct diff_options *options)
 {
 	int rename_limit = options->rename_limit;
@@ -447,17 +447,17 @@ static int too_many_rename_candidates(int num_create,
 	 * This basically does a test for the rename matrix not
 	 * growing larger than a "rename_limit" square matrix, ie:
 	 *
-	 *    num_create * num_src > rename_limit * rename_limit
+	 *    num_destinations * num_src > rename_limit * rename_limit
 	 */
 	if (rename_limit <= 0)
 		rename_limit = 32767;
-	if ((num_create <= rename_limit || num_src <= rename_limit) &&
-	    ((uint64_t)num_create * (uint64_t)num_src
+	if ((num_destinations <= rename_limit || num_src <= rename_limit) &&
+	    ((uint64_t)num_destinations * (uint64_t)num_src
 	     <= (uint64_t)rename_limit * (uint64_t)rename_limit))
 		return 0;
 
 	options->needed_rename_limit =
-		num_src > num_create ? num_src : num_create;
+		num_src > num_destinations ? num_src : num_destinations;
 
 	/* Are we running under -C -C? */
 	if (!options->flags.find_copies_harder)
@@ -469,8 +469,8 @@ static int too_many_rename_candidates(int num_create,
 			continue;
 		num_src++;
 	}
-	if ((num_create <= rename_limit || num_src <= rename_limit) &&
-	    ((uint64_t)num_create * (uint64_t)num_src
+	if ((num_destinations <= rename_limit || num_src <= rename_limit) &&
+	    ((uint64_t)num_destinations * (uint64_t)num_src
 	     <= (uint64_t)rename_limit * (uint64_t)rename_limit))
 		return 2;
 	return 1;
@@ -505,7 +505,7 @@ void diffcore_rename(struct diff_options *options)
 	struct diff_queue_struct outq;
 	struct diff_score *mx;
 	int i, j, rename_count, skip_unmodified = 0;
-	int num_create, dst_cnt;
+	int num_destinations, dst_cnt;
 	struct progress *progress = NULL;
 
 	if (!minimum_score)
@@ -570,13 +570,13 @@ void diffcore_rename(struct diff_options *options)
 	 * Calculate how many renames are left (but all the source
 	 * files still remain as options for rename/copies!)
 	 */
-	num_create = (rename_dst_nr - rename_count);
+	num_destinations = (rename_dst_nr - rename_count);
 
 	/* All done? */
-	if (!num_create)
+	if (!num_destinations)
 		goto cleanup;
 
-	switch (too_many_rename_candidates(num_create, options)) {
+	switch (too_many_rename_candidates(num_destinations, options)) {
 	case 1:
 		goto cleanup;
 	case 2:
@@ -593,7 +593,8 @@ void diffcore_rename(struct diff_options *options)
 				(uint64_t)rename_dst_nr * (uint64_t)rename_src_nr);
 	}
 
-	mx = xcalloc(st_mult(NUM_CANDIDATE_PER_DST, num_create), sizeof(*mx));
+	mx = xcalloc(st_mult(NUM_CANDIDATE_PER_DST, num_destinations),
+		     sizeof(*mx));
 	for (dst_cnt = i = 0; i < rename_dst_nr; i++) {
 		struct diff_filespec *two = rename_dst[i].two;
 		struct diff_score *m;