remote: simplify match_name_with_pattern() using strbuf

Make the code simpler and shorter by avoiding repetitive use of
string length variables and leaving memory allocation to strbuf
functions.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

remote.c

@@ -862,21 +862,14 @@ static int match_name_with_pattern(const char *key, const char *name,
 	ret = !strncmp(name, key, klen) && namelen >= klen + ksuffixlen &&
 		!memcmp(name + namelen - ksuffixlen, kstar + 1, ksuffixlen);
 	if (ret && value) {
+		struct strbuf sb = STRBUF_INIT;
 		const char *vstar = strchr(value, '*');
-		size_t vlen;
-		size_t vsuffixlen;
 		if (!vstar)
 			die("Value '%s' of pattern has no '*'", value);
-		vlen = vstar - value;
-		vsuffixlen = strlen(vstar + 1);
-		*result = xmalloc(vlen + vsuffixlen +
-				  strlen(name) -
-				  klen - ksuffixlen + 1);
-		strncpy(*result, value, vlen);
-		strncpy(*result + vlen,
-			name + klen, namelen - klen - ksuffixlen);
-		strcpy(*result + vlen + namelen - klen - ksuffixlen,
-		       vstar + 1);
+		strbuf_add(&sb, value, vstar - value);
+		strbuf_add(&sb, name + klen, namelen - klen - ksuffixlen);
+		strbuf_addstr(&sb, vstar + 1);
+		*result = strbuf_detach(&sb, NULL);
 	}
 	return ret;
 }