[PATCH 03/26] fetch-pack: use parse_oid_hex

["brian m. carlson" <sandals@crustytoothpaste.net>]

Instead of hard-coding constants, use parse_oid_hex to compute a pointer
and use it in further parsing operations.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
---
 fetch-pack.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fetch-pack.c b/fetch-pack.c
index 65be043f2a..1f56b8a6d7 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -168,16 +168,16 @@ static enum ack_type get_ack(struct packet_reader *reader,
 	if (!strcmp(reader->line, "NAK"))
 		return NAK;
 	if (skip_prefix(reader->line, "ACK ", &arg)) {
-		if (!get_oid_hex(arg, result_oid)) {
-			arg += 40;
-			len -= arg - reader->line;
+		const char *p;
+		if (!parse_oid_hex(arg, result_oid, &p)) {
+			len -= p - reader->line;
 			if (len < 1)
 				return ACK;
-			if (strstr(arg, "continue"))
+			if (strstr(p, "continue"))
 				return ACK_continue;
-			if (strstr(arg, "common"))
+			if (strstr(p, "common"))
 				return ACK_common;
-			if (strstr(arg, "ready"))
+			if (strstr(p, "ready"))
 				return ACK_ready;
 			return ACK;
 		}