patch 8.1.1082: "Conceal" match is mixed up with 'hlsearch' match.

Problem:    "Conceal" match is mixed up with 'hlsearch' match.
Solution:   Check that a match is found, not a 'hlsearch' item. (Andy
            Massimino, closes #4073)
diff --git a/src/version.c b/src/version.c
index fad51e2..98f09b3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -776,6 +776,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1082,
+/**/
     1081,
 /**/
     1080,