[zbin] Fix 64-bit compilation warnings for util/zbin.c

Recent gcc versions generate more warnings when compiling util/zbin.c
on a 64-bit system:

util/zbin.c: In function `read_file':
util/zbin.c:85: warning: format `%d' expects type `int', but
                argument 3 has type `size_t'
util/zbin.c:91: warning: format `%d' expects type `int', but
                argument 3 has type `size_t'
util/zbin.c: In function `read_zinfo_file':
util/zbin.c:119: warning: format `%d' expects type `int', but
                 argument 4 has type `size_t'
util/zbin.c: In function `alloc_output_file':
util/zbin.c:134: warning: format `%d' expects type `int', but
                 argument 3 has type `size_t'
util/zbin.c: In function `process_zinfo_add':
util/zbin.c:244: warning: format `%d' expects type `int', but
                 argument 3 has type `size_t'
util/zbin.c:266: warning: format `%d' expects type `int', but
                 argument 7 has type `size_t'
util/zbin.c:286: warning: format `%#x' expects type `unsigned int',
                 but argument 7 has type `size_t'
util/zbin.c: In function `write_output_file':
util/zbin.c:348: warning: format `%d' expects type `int', but
                 argument 3 has type `size_t'

This patch eliminates these warnings.

Signed-off-by: Marty Connor <mdc@etherboot.org>

src/util/zbin.c

 	*len = stat.st_size;
 	*buf = malloc ( *len );
 	if ( ! *buf ) {
-		fprintf ( stderr, "Could not malloc() %d bytes for %s: %s\n",
+		fprintf ( stderr, "Could not malloc() %zd bytes for %s: %s\n",
 			  *len, filename, strerror ( errno ) );
 		goto err;
 	}
 
 	if ( fread ( *buf, 1, *len, file ) != *len ) {
-		fprintf ( stderr, "Could not read %d bytes from %s: %s\n",
+		fprintf ( stderr, "Could not read %zd bytes from %s: %s\n",
 			  *len, filename, strerror ( errno ) );
 		goto err;
 	}
 		return -1;
 
 	if ( ( len % sizeof ( *(zinfo->zinfo) ) ) != 0 ) {
-		fprintf ( stderr, ".zinfo file %s has invalid length %d\n",
+		fprintf ( stderr, ".zinfo file %s has invalid length %zd\n",
 			  filename, len );
 		return -1;
 	}
 	output->max_len = ( max_len );
 	output->buf = malloc ( max_len );
 	if ( ! output->buf ) {
-		fprintf ( stderr, "Could not allocate %d bytes for output\n",
+		fprintf ( stderr, "Could not allocate %zd bytes for output\n",
 			  max_len );
 		return -1;
 	}
 		addend = *( ( int32_t * ) target );
 		break;
 	default:
-		fprintf ( stderr, "Unsupported add datasize %d\n",
+		fprintf ( stderr, "Unsupported add datasize %zd\n",
 			  datasize );
 		return -1;
 	}
 	}
 
 	if ( val & ~mask ) {
-		fprintf ( stderr, "Add %s%#x+%#lx at %#zx overflows %d-byte "
+		fprintf ( stderr, "Add %s%#x+%#lx at %#zx overflows %zd-byte "
 			  "field (%d bytes too big)\n",
 			  ( ( addend < 0 ) ? "-" : "" ), abs ( addend ), size,
 			  offset, datasize,
 	}
 
 	if ( DEBUG ) {
-		fprintf ( stderr, "ADDx [%#zx,%#zx) (%s%#x+(%#x/%#x)) = "
+		fprintf ( stderr, "ADDx [%#zx,%#zx) (%s%#x+(%#zx/%#x)) = "
 			  "%#lx\n", offset, ( offset + datasize ),
 			  ( ( addend < 0 ) ? "-" : "" ), abs ( addend ),
 			  output->len, add->divisor, val );
 
 static int write_output_file ( struct output_file *output ) {
 	if ( fwrite ( output->buf, 1, output->len, stdout ) != output->len ) {
-		fprintf ( stderr, "Could not write %d bytes of output: %s\n",
+		fprintf ( stderr, "Could not write %zd bytes of output: %s\n",
 			  output->len, strerror ( errno ) );
 		return -1;
 	}