patch 8.1.0765: string format of a Blob can't be parsed back

Problem:    String format of a Blob can't be parsed back.
Solution:   Use 0z format.
diff --git a/src/version.c b/src/version.c
index 152c34e..3f0e23b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -792,6 +792,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    765,
+/**/
     764,
 /**/
     763,