Merge branch 'plain-etag'

Conflicts:
	ui-shared.c

ui-plain.c

@@ -37,6 +37,7 @@ static void print_object(const unsigned char *sha1, const char *path)
 		ctx.page.mimetype = "text/plain";
 	ctx.page.filename = fmt("%s", path);
 	ctx.page.size = size;
+	ctx.page.etag = sha1_to_hex(sha1);
 	cgit_print_http_headers(&ctx);
 	html_raw(buf, size);
 	match = 1;