user: Fix -d debug logging for usermode emulation

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

bsd-user/main.c

@@ -866,7 +866,7 @@ int main(int argc, char **argv)
         int mask;
         const CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {

darwin-user/main.c

@@ -819,7 +819,7 @@ int main(int argc, char **argv)
         int mask;
         CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {

linux-user/main.c

@@ -3030,7 +3030,7 @@ int main(int argc, char **argv, char **envp)
         int mask;
         const CPULogItem *item;
 
-        mask = cpu_str_to_log_mask(r);
+        mask = cpu_str_to_log_mask(log_mask);
         if (!mask) {
             printf("Log items (comma separated):\n");
             for (item = cpu_log_items; item->mask != 0; item++) {