patch 8.1.1337: get empty text prop when splitting line just after text prop

Problem:    Get empty text prop when splitting line just after text prop.
Solution:   Do not create an empty text prop at the start of the line.
diff --git a/src/version.c b/src/version.c
index 01c4394..c34eed0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1337,
+/**/
     1336,
 /**/
     1335,