patch 8.2.4465: fuzzy completion does not order matches properly

Problem:    Fuzzy completion does not order matches properly.
Solution:   Do not use regular expression match. (Yegappan Lakshmanan,
            closes #9843)
diff --git a/src/search.c b/src/search.c
index 00a9fdf..063058d 100644
--- a/src/search.c
+++ b/src/search.c
@@ -5001,7 +5001,7 @@
 fuzzy_match_str(char_u *str, char_u *pat)
 {
     int		score = 0;
-    int_u	matchpos[256];
+    int_u	matchpos[MAX_FUZZY_MATCHES];
 
     if (str == NULL || pat == NULL)
 	return 0;