patch 8.2.1921: fuzzy matching does not recognize path separators

Problem:    Fuzzy matching does not recognize path separators.
Solution:   Add a bonus for slash and backslash. (Yegappan Lakshmanan,
            closes #7225)
diff --git a/src/version.c b/src/version.c
index 7031dc5..1cdfb47 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1921,
+/**/
     1920,
 /**/
     1919,