libc: close fds 0 and 1 before opening stdout and stderr

libs/libc/src/init.cpp

@@ -2,9 +2,13 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 extern "C" void initialize_libc()
 {
+    close(0);  // If it was already open, close it
+    close(1);  // If it was already open, close it
+    errno = 0; // If it was not open. the kernel will throw us EBADF. Let's ignore that, since we don't care.
     __stderr = fopen("/dev/console", "rw");
     if (!stderr) exit(errno);
     __stdout = fopen("/dev/console", "rw");