RFR 8175305: Typos in net.properties

[Pavel Rappo]

Hello,

Could you please review the following trivial change for [1]?

   http://cr.openjdk.java.net/~prappo/8175305/webrev.00/

Thanks,
-Pavel

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[1] https://bugs.openjdk.java.net/browse/JDK-8175305