wrapper: indent with tabs

The codebase uses tabs for indentation. Convert an erroneous space
indent into a tab indent.

Signed-off-by: Denton Liu <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: Denton-L

wrapper.c

@@ -147,7 +147,7 @@ ssize_t xread(int fd, void *buf, size_t len)
 {
 	ssize_t nr;
 	if (len > MAX_IO_SIZE)
-	    len = MAX_IO_SIZE;
+		len = MAX_IO_SIZE;
 	while (1) {
 		nr = read(fd, buf, len);
 		if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
@@ -165,7 +165,7 @@ ssize_t xwrite(int fd, const void *buf, size_t len)
 {
 	ssize_t nr;
 	if (len > MAX_IO_SIZE)
-	    len = MAX_IO_SIZE;
+		len = MAX_IO_SIZE;
 	while (1) {
 		nr = write(fd, buf, len);
 		if ((nr < 0) && (errno == EAGAIN || errno == EINTR))