patch 8.1.0525: terminal test skips part on Windows

Problem:    Terminal test skips part on Windows.
Solution:   Fix Test_terminal_does_not_truncate_last_newlines(). (Hirohito
            Higashi, closes #3606)
diff --git a/src/version.c b/src/version.c
index 1edb1d2..252d047 100644
--- a/src/version.c
+++ b/src/version.c
@@ -793,6 +793,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    525,
+/**/
     524,
 /**/
     523,