TST: Increase buffer size of TestWriteFdNonblock

The default pipe size is 1M (see `man 7 pipe`), and this test is only
trying to fill it with 100K, so increase the fill size so it isn't so
flaky.

Author: QuLogic

internal/sysfs/file_test.go

@@ -100,7 +100,7 @@ func TestWriteFdNonblock(t *testing.T) {
 	// Create a buffer (the content is not relevant)
 	buf := make([]byte, 1024)
 	// Write to the file until the pipe buffer gets filled up.
-	numWrites := 100
+	numWrites := 1111
 	for i := 0; i < numWrites; i++ {
 		_, e := writeFd(fd, buf)
 		if e != 0 {