bsd-user: Use qemu_set_log_filename_flags

Perform all logfile setup in one step.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-29-richard.henderson@linaro.org>

bsd-user/main.c

@@ -405,16 +405,16 @@ int main(int argc, char **argv)
     }
 
     /* init debug */
-    qemu_set_log_filename(log_file, &error_fatal);
-    if (log_mask) {
-        int mask;
-
-        mask = qemu_str_to_log_mask(log_mask);
-        if (!mask) {
-            qemu_print_log_usage(stdout);
-            exit(1);
+    {
+        int mask = 0;
+        if (log_mask) {
+            mask = qemu_str_to_log_mask(log_mask);
+            if (!mask) {
+                qemu_print_log_usage(stdout);
+                exit(1);
+            }
         }
-        qemu_set_log(mask, &error_fatal);
+        qemu_set_log_filename_flags(log_file, mask, &error_fatal);
     }
 
     if (optind >= argc) {