promisor-remote: use string constants for 'name' and 'url' too

A previous commit started to define `promisor_field_filter` and
`promisor_field_token`, and used them instead of the
"partialCloneFilter" and "token" string literals.

Let's do the same for "name" and "url" to avoid repeating them
several times and for consistency with the other fields.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: chriscool

promisor-remote.c

@@ -314,6 +314,12 @@ static int allow_unsanitized(char ch)
 	return ch > 32 && ch < 127;
 }
 
+/*
+ * All the fields used in "promisor-remote" protocol capability,
+ * including the mandatory "name" and "url" ones.
+ */
+static const char promisor_field_name[] = "name";
+static const char promisor_field_url[] = "url";
 static const char promisor_field_filter[] = "partialCloneFilter";
 static const char promisor_field_token[] = "token";
 
@@ -520,9 +526,9 @@ char *promisor_remote_info(struct repository *repo)
 		if (item != config_info.items)
 			strbuf_addch(&sb, ';');
 
-		strbuf_addstr(&sb, "name=");
+		strbuf_addf(&sb, "%s=", promisor_field_name);
 		strbuf_addstr_urlencode(&sb, p->name, allow_unsanitized);
-		strbuf_addstr(&sb, ",url=");
+		strbuf_addf(&sb, ",%s=", promisor_field_url);
 		strbuf_addstr_urlencode(&sb, p->url, allow_unsanitized);
 
 		if (p->filter) {
@@ -664,9 +670,9 @@ static struct promisor_info *parse_one_advertised_remote(struct strbuf *remote_i
 		*p = '\0';
 		value = url_percent_decode(p + 1);
 
-		if (!strcmp(elem, "name"))
+		if (!strcmp(elem, promisor_field_name))
 			info->name = value;
-		else if (!strcmp(elem, "url"))
+		else if (!strcmp(elem, promisor_field_url))
 			info->url = value;
 		else if (!strcmp(elem, promisor_field_filter))
 			info->filter = value;