git: openjdk/jdk-sandbox: simpleserver: fix platform-specific line separator in OutputFilterTest

[Julia Boes]

Changeset: 5994130b
Author:    Julia Boes <julia.boes at oracle.com>
Date:      2021-07-12 16:42:18 +0000
URL:       https://git.openjdk.java.net/jdk-sandbox/commit/5994130b9f1db91b333169df988914058ff3f95d

fix platform-specific line separator in OutputFilterTest

! src/jdk.httpserver/share/classes/sun/net/httpserver/simpleserver/SimpleFileServerImpl.java
! test/jdk/com/sun/net/httpserver/simpleserver/OutputFilterTest.java
! test/jdk/com/sun/net/httpserver/simpleserver/SimpleFileServerTest.java