patch 8.2.0060: message test only runs with one encoding Commit: https://github.com/vim/vim/commit/d0337e360e9f0b51a1a5627239d80a45dee8c3be Author: Bram Moolenaar <Bram@vim.org> Date: Mon Dec 30 17:55:34 2019 +0100 patch 8.2.0060: message test only runs with one encoding Problem: Message test only runs with one encoding. (Dominique Pelle) Solution: Run the test with "utf-8" and "latin1". Fix underflow. (related to #5410)

--- a/src/message.c
+++ b/src/message.c
@@ -307,7 +307,8 @@ trunc_string(
     }
     else
     {
-	for (i = (int)STRLEN(s); len + (n = ptr2cells(s + i - 1)) <= room; --i)
+	for (i = (int)STRLEN(s);
+		   i - 1 >= 0 && len + (n = ptr2cells(s + i - 1)) <= room; --i)
 	    len += n;
     }