RFR (XXS): 7130404: [macosx] "os.arch" value should be "x86_64" for compatibility with Apple JDK6

[Stephen Bannasch]

At 6:10 PM -0500 2/22/12, James Melvin wrote:
>Updated to include latest comments...
>
>http://cr.openjdk.java.net/~jmelvin/7130404/hotspot/webrev.02

line 46 still uses: os.startsWith("Mac OS X") instead of os.contains("OS X")

http://cr.openjdk.java.net/~jmelvin/7130404/hotspot/webrev.02/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java.html