patch 8.1.1824: crash when correctly spelled word is very long

Problem:    Crash when correctly spelled word is very long. (Ben Kraft)
Solution:   Check word length before copying. (closes #4778)
diff --git a/src/version.c b/src/version.c
index ec53de2..53c7a9d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -770,6 +770,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1824,
+/**/
     1823,
 /**/
     1822,