patch 8.0.0543: test_edit causes older xfce4-terminal to close

Problem:    Test_edit causes older xfce4-terminal to close. (Dominique Pelle)
Solution:   Reduce number of columns to 2000.  Try to restore the window
            position.
diff --git a/src/version.c b/src/version.c
index d22f165..4e37cf3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -765,6 +765,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    543,
+/**/
     542,
 /**/
     541,