[3.6] bpo-30854: Fix compile error when --without-threads (GH-2581) (#2583)

* bpo-30854: Fix compile error when --without-threads

* bpo-30854: fix news
(cherry picked from commit 0c3116309307ad2c7f8e2d2096612f4ab33cbb62)
diff --git a/Python/ceval.c b/Python/ceval.c
index bf9103d..770dfcb 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -621,7 +621,7 @@
         arg = pendingcalls[i].arg;
         pendingfirst = (i + 1) % NPENDINGCALLS;
         if (func(arg) < 0) {
-            goto error:
+            goto error;
         }
     }
     busy = 0;