hg: jdk/submit: 8196913: javadoc does not (over)write stylesheet.css

[priya.lakshmi.muthuswamy at oracle.com]

Changeset: 7a7285477153
Author:    pmuthuswamy
Date:      2018-05-24 20:34 +0530
URL:       http://hg.openjdk.java.net/jdk/submit/rev/7a7285477153

8196913: javadoc does not (over)write stylesheet.css
Reviewed-by: jjg

! src/jdk.javadoc/share/classes/jdk/javadoc/internal/doclets/formats/html/HtmlDoclet.java
+ test/langtools/jdk/javadoc/doclet/testStylesheetOverwrite/TestStylesheetOverwrite.java