1) Moved tprintf and related functions to their own file in common/libc/printf/tprintf.c.

This file is included by both libc and hostcompat.

2) Changed printf -> tprintf in all testbin programs

userland/testbin/bigfile/bigfile.c

@@ -78,7 +78,7 @@ main(int argc, char *argv[])
 	/* round size up */
 	size = ((size + chunksize - 1) / chunksize) * chunksize;
 
-	printf("Creating a file of size %d in %d-byte chunks\n",
+	tprintf("Creating a file of size %d in %d-byte chunks\n",
 	       size, chunksize);
 
 	fd = open(filename, O_WRONLY|O_CREAT|O_TRUNC);