1 files changed, 15 insertions, 0 deletions
diff --git a/src/nvim/ex_cmds2.c b/src/nvim/ex_cmds2.c
index 0ecc389699..4684a1b31d 100644
--- a/src/nvim/ex_cmds2.c
+++ b/src/nvim/ex_cmds2.c
@@ -1152,6 +1152,21 @@ static void script_dump_profile(FILE *fd)
           if (vim_fgets(IObuff, IOSIZE, sfd)) {
             break;
           }
+          // When a line has been truncated, append NL, taking care
+          // of multi-byte characters .
+          if (IObuff[IOSIZE - 2] != NUL && IObuff[IOSIZE - 2] != NL) {
+            int n = IOSIZE - 2;
+
+            // Move to the first byte of this char.
+            // utf_head_off() doesn't work, because it checks
+            // for a truncated character.
+            while (n > 0 && (IObuff[n] & 0xc0) == 0x80) {
+              n--;
+            }
+
+            IObuff[n] = NL;
+            IObuff[n + 1] = NUL;
+          }
           if (i < si->sn_prl_ga.ga_len
               && (pp = &PRL_ITEM(si, i))->snp_count > 0) {
             fprintf(fd, "%5d ", pp->snp_count);