patch 8.2.2013: Vim9: not skipping white space after unary minus

Problem:    Vim9: not skipping white space after unary minus.
Solution:   Skip whitespace. (closes #7324)
diff --git a/src/version.c b/src/version.c
index 0f0ccda..3f5cd79 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2013,
+/**/
     2012,
 /**/
     2011,