Unused variables.
 [jmk] --rw-rw-r-- M 960117 glenda sys 295 Dec  8 09:33 sys/src/ape/lib/ap/stdio/sprintf.c
	/n/sourcesdump/2005/1208/plan9/sys/src/ape/lib/ap/stdio/sprintf.c:5,11 - 
	/n/sourcesdump/2005/1209/plan9/sys/src/ape/lib/ap/stdio/sprintf.c:5,10
	  int sprintf(char *buf, const char *fmt, ...){
	  	int n;
	  	va_list args;
	- 	char *v;
	  	FILE *f=_IO_sopenw();
	  	if(f==NULL)
	  		return 0;
 [jmk] --rw-rw-r-- M 960117 glenda sys 267 Dec  8 09:33 sys/src/ape/lib/ap/stdio/vsnprintf.c
	/n/sourcesdump/2005/1208/plan9/sys/src/ape/lib/ap/stdio/vsnprintf.c:4,10 - 
	/n/sourcesdump/2005/1209/plan9/sys/src/ape/lib/ap/stdio/vsnprintf.c:4,9
	  #include "iolib.h"
	  int vsnprintf(char *buf, size_t nbuf, const char *fmt, va_list args){
	  	int n;
	- 	char *v;
	  	FILE *f=_IO_sopenw();
	  	if(f==NULL)
	  		return 0;
 [jmk] --rw-rw-r-- M 960117 glenda sys 254 Dec  8 09:33 sys/src/ape/lib/ap/stdio/vsprintf.c
	/n/sourcesdump/2005/1208/plan9/sys/src/ape/lib/ap/stdio/vsprintf.c:4,15 - 
	/n/sourcesdump/2005/1209/plan9/sys/src/ape/lib/ap/stdio/vsprintf.c:4,14
	  #include "iolib.h"
	  int vsprintf(char *buf, const char *fmt, va_list args){
	  	int n;
	- 	char *v;
	  	FILE *f=_IO_sopenw();
	  	if(f==NULL)
	  		return 0;
	  	setvbuf(f, buf, _IOFBF, 100000);
	  	n=vfprintf(f, fmt, args);
	- 	v=_IO_sclose(f);
	+ 	_IO_sclose(f);
	  	return n;
	  }