Remove bb_ prefixes from xfuncs.c (and a few other places), consolidate

things like xasprintf() into xfuncs.c, remove xprint_file_by_name() (it only
had one user), clean up lots of #includes...  General cleanup pass.  What I've
been doing for the last couple days.

And it conflicts!  I've removed httpd.c from this checkin due to somebody else
touching that file.  It builds for me.  I have to catch a bus.  (Now you know
why I'm looking forward to Mercurial.)

coreutils/stty.c

@@ -21,31 +21,7 @@
 
    */
 
-//#define TEST
-
 #include "busybox.h"
-#include <stddef.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-
-#include <sys/param.h>
-#include <unistd.h>
-
-#ifndef STDIN_FILENO
-# define STDIN_FILENO 0
-#endif
-
-#ifndef STDOUT_FILENO
-# define STDOUT_FILENO 1
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <fcntl.h>
 
 #define STREQ(a, b) (strcmp ((a), (b)) == 0)
 
@@ -469,11 +445,7 @@ static const struct suffix_mult stty_suffixes[] = {
 	{NULL, 0   }
 };
 
-#ifndef TEST
 int stty_main(int argc, char **argv)
-#else
-int main(int argc, char **argv)
-#endif
 {
 	struct termios mode;
 	void (*output_func)(struct termios *);
@@ -541,7 +513,7 @@ int main(int argc, char **argv)
 
 		device_name = file_name;
 		fclose(stdin);
-		bb_xopen(device_name, O_RDONLY | O_NONBLOCK);
+		xopen(device_name, O_RDONLY | O_NONBLOCK);
 		if ((fdflags = fcntl(STDIN_FILENO, F_GETFL)) == -1
 			|| fcntl(STDIN_FILENO, F_SETFL, fdflags & ~O_NONBLOCK) < 0)
 			perror_on_device("%s: couldn't reset non-blocking mode");
@@ -1299,9 +1271,3 @@ static const char *visible(unsigned int ch)
 	*bpout = '\0';
 	return (const char *) buf;
 }
-
-#ifdef TEST
-
-const char *bb_applet_name = "stty";
-
-#endif