RFR: 8000817: Reinstate accidentally removed sleep() from ProcessBuilder/Basic.java

[Rob McKenna]

Hi folks,

Managed to remove the Thread.sleep(10) from the test when fixing 
7152183. Sorry about that.

http://cr.openjdk.java.net/~robm/8000817/webrev.01/ 
<http://cr.openjdk.java.net/%7Erobm/8000817/webrev.01/>

    -Rob