hg: jdk/sandbox: 8230694: http.keepAlive system property is inconsistently/incorrectly documented

[chris.hegarty at oracle.com]

Changeset: 5aaf53d4fe63
Author:    dfuchs
Date:      2019-09-06 14:04 +0100
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/5aaf53d4fe63

8230694: http.keepAlive system property is inconsistently/incorrectly documented
Summary: trivially fixed the net-properties.html file
Reviewed-by: alanb

! src/java.base/share/classes/java/net/doc-files/net-properties.html