sha1_name.c: rename "now" to "current"

This variable points at the element we are currently looking at, and
does not have anything to do with the current time which the name
"now" implies.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

sha1_name.c

@@ -93,11 +93,11 @@ static int find_short_packed_object(int len, const unsigned char *match, unsigne
 		last = num;
 		while (first < last) {
 			uint32_t mid = (first + last) / 2;
-			const unsigned char *now;
+			const unsigned char *current;
 			int cmp;
 
-			now = nth_packed_object_sha1(p, mid);
-			cmp = hashcmp(match, now);
+			current = nth_packed_object_sha1(p, mid);
+			cmp = hashcmp(match, current);
 			if (!cmp) {
 				first = mid;
 				break;
@@ -109,17 +109,17 @@ static int find_short_packed_object(int len, const unsigned char *match, unsigne
 			last = mid;
 		}
 		if (first < num) {
-			const unsigned char *now, *next;
-			now = nth_packed_object_sha1(p, first);
-			if (match_sha(len, match, now)) {
+			const unsigned char *current, *next;
+			current = nth_packed_object_sha1(p, first);
+			if (match_sha(len, match, current)) {
 				next = nth_packed_object_sha1(p, first+1);
 				if (!next|| !match_sha(len, match, next)) {
 					/* unique within this pack */
 					if (!found) {
-						found_sha1 = now;
+						found_sha1 = current;
 						found++;
 					}
-					else if (hashcmp(found_sha1, now)) {
+					else if (hashcmp(found_sha1, current)) {
 						found = 2;
 						break;
 					}