patch 8.2.1963: crash when using a popup window with "latin1" encoding

Problem:    Crash when using a popup window with "latin1" encoding.
Solution:   Don't use ScreenLinesUC when enc_utf8 is false. (closes #7241)
diff --git a/src/version.c b/src/version.c
index 6baaf59..3ff4586 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1963,
+/**/
     1962,
 /**/
     1961,