Do not use std::cout for qurt's sake.

Using cout drags in std::localeconv which isn't defined
on QURT. While this file is also used for POSIX, it doesn't
seem to harm much to use printf there as well.

src/platforms/apps.cpp.in

@@ -4,7 +4,7 @@
 
 #include "apps.h"
 
-#include <iostream>
+#include <cstdio>
 #include <map>
 #include <string>
 
@@ -44,7 +44,7 @@ void list_builtins(apps_map_type &apps)
 
 int shutdown_main(int argc, char *argv[])
 {
-	std::cout << "Shutting down" << std::endl;
+	printf("Shutting down\n");
 	exit(0);
 }
 
@@ -80,7 +80,7 @@ int sleep_main(int argc, char *argv[])
         }
 
         unsigned long usecs = 1000000UL * atol(argv[1]);
-        std::cout << "Sleeping for " << argv[1] << " s; (" << usecs << " us)." << std::endl;
+        printf("Sleeping for %s s; (%lu us).\n", argv[1], usecs);
         usleep(usecs);
         return 0;
 }