patch 8.1.2152: problems navigating tags file on MacOS Catalina

Problem:    Problems navigating tags file on MacOS Catalina.
Solution:   Use fseek instead of lseek. (John Lamb, fixes #5061)
diff --git a/src/version.c b/src/version.c
index c1c3442..e21f5c4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2152,
+/**/
     2151,
 /**/
     2150,