patch 9.1.0781: tests: test_filetype fails

Problem:  tests: test_filetype fails (clason)
          (after v9.1.0779)
Solution: Use correct filename for neomuttlog filetype

related: #15845

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 76d1889..8f3f54d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    781,
+/**/
     780,
 /**/
     779,