Fix multibyte confusion in diagnostics

* src/print.c (print_error_message):
Don't assume that the caller's name is unibyte.
* src/xdisp.c (vadd_to_log):
Don't assume that the formatted diagnostic is unibyte.

2 files changed, 2 insertions, 2 deletions

diff --git a/src/print.c b/src/print.c
index f396151eaa1..af615749f37 100644
--- a/src/print.c
+++ b/src/print.c
@@ -902,7 +902,7 @@ print_error_message (Lisp_Object data, Lisp_Object stream, const char *context,
       USE_SAFE_ALLOCA;
       char *name = SAFE_ALLOCA (cnamelen);
       memcpy (name, SDATA (cname), cnamelen);
-      message_dolog (name, cnamelen, 0, 0);
+      message_dolog (name, cnamelen, 0, STRING_MULTIBYTE (cname));
       message_dolog (": ", 2, 0, 0);
       SAFE_FREE ();
     }
diff --git a/src/xdisp.c b/src/xdisp.c
index 6d747ebc5ce..88e6c8d1613 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -9843,7 +9843,7 @@ vadd_to_log (char const *format, va_list ap)
   char *buffer = SAFE_ALLOCA (len);
   memcpy (buffer, SDATA (msg), len);
 
-  message_dolog (buffer, len - 1, true, false);
+  message_dolog (buffer, len - 1, true, STRING_MULTIBYTE (msg));
   SAFE_FREE ();
 
   UNGCPRO;