patch 9.1.1500: if_python: typo in python error variable

Problem:  if_python: typo in python error variable
Solution: fix typo (Damien Lejay)

closes: #17640

Signed-off-by: Damien Lejay <damien@lejay.be>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 7181bae..cbf39bf 100644
--- a/src/version.c
+++ b/src/version.c
@@ -720,6 +720,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1500,
+/**/
     1499,
 /**/
     1498,