8073207: javadoc typos in java.nio.channels.Pipe

Correct the verbiage as suggested.

Reviewed-by: alanb

jdk/src/java.base/share/classes/java/nio/channels/Pipe.java

@@ -35,7 +35,7 @@ import java.nio.channels.spi.*;
  * <p> A pipe consists of a pair of channels: A writable {@link
  * Pipe.SinkChannel sink} channel and a readable {@link Pipe.SourceChannel source}
  * channel.  Once some bytes are written to the sink channel they can be read
- * from source channel in exactlyAthe order in which they were written.
+ * from the source channel in exactly the order in which they were written.
  *
  * <p> Whether or not a thread writing bytes to a pipe will block until another
  * thread reads those bytes, or some previously-written bytes, from the pipe is