patch 8.2.0887: searchcount().exact_match is 1 right after a match

Problem:    Searchcount().exact_match is 1 right after a match.
Solution:   Use LT_POS() instead of LTOREQ_POS(). (closes #6189)
diff --git a/src/testdir/test_search_stat.vim b/src/testdir/test_search_stat.vim
index de73051..668545c 100644
--- a/src/testdir/test_search_stat.vim
+++ b/src/testdir/test_search_stat.vim
@@ -27,6 +27,14 @@
   call assert_equal(
     \ #{current: 1, exact_match: 1, total: 10, incomplete: 0, maxcount: 99},
     \ searchcount(#{pattern: 'fooooobar', pos: [3, 1, 0]}))
+  " on last char of match
+  call assert_equal(
+    \ #{current: 1, exact_match: 1, total: 10, incomplete: 0, maxcount: 99},
+    \ searchcount(#{pattern: 'fooooobar', pos: [3, 9, 0]}))
+  " on char after match
+  call assert_equal(
+    \ #{current: 1, exact_match: 0, total: 10, incomplete: 0, maxcount: 99},
+    \ searchcount(#{pattern: 'fooooobar', pos: [3, 10, 0]}))
   call assert_equal(
     \ #{current: 1, exact_match: 0, total: 10, incomplete: 0, maxcount: 99},
     \ searchcount(#{pattern: 'fooooobar', pos: [4, 1, 0]}))