RFR: 8239365: ProcessBuilder/Basic.java test modifications for AIX execution

[Adam Farley8]

Hi All,

Reviews and sponsor requested for a small test change.

Short version: When an AIX machine has the file set "bos.msg.en_US.rte", 
the error messages are not in a form that the test expects, causing 
failure.

The simplest option appears to be adding the second potential form of the 
message into the regex (see webrev).

http://cr.openjdk.java.net/~afarley/8239365.1/webrev/

Bug: https://bugs.openjdk.java.net/browse/JDK-8239365 

Best Regards

Adam Farley 
IBM Runtimes
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