updated for version 7.3.293
Problem:    MSVC compiler has a problem with non-ASCII characters.
Solution:   Avoid non-ASCII characters. (Hong Xu)
diff --git a/src/spell.c b/src/spell.c
index eade2f7..464d4d0 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -11197,7 +11197,7 @@
 	    c = *s++;
 
 #ifdef FEAT_MBYTE
-	/* We only change ß to SS when we are certain latin1 is used.  It
+	/* We only change 0xdf to SS when we are certain latin1 is used.  It
 	 * would cause weird errors in other 8-bit encodings. */
 	if (enc_latin1like && c == 0xdf)
 	{