patch 8.1.0491: if a terminal dump has CR it is considered corrupt

Problem:    If a terminal dump has CR it is considered corrupt.
Solution:   Ignore CR characters. (Nobuhiro Takasaki, closes #3558)
diff --git a/src/version.c b/src/version.c
index a34837b..ad9b575 100644
--- a/src/version.c
+++ b/src/version.c
@@ -793,6 +793,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    491,
+/**/
     490,
 /**/
     489,