patch 8.2.5071: with some Mac OS version clockid_t is redefined

Problem:    With some Mac OS version clockid_t is redefined.
Solution:   Adjust #ifdefs. (Ozaki Kiichi, closes #10549)
diff --git a/src/version.c b/src/version.c
index 5163254..ebfd0d4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -735,6 +735,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    5071,
+/**/
     5070,
 /**/
     5069,