hg: jdk/jdk: 8224783: Javadoc of String strip methods uses link where linkplain would be better

[joe.darcy at oracle.com]

Changeset: 45128070fd15
Author:    darcy
Date:      2019-05-28 10:54 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/45128070fd15

8224783: Javadoc of String strip methods uses link where linkplain would be better
Reviewed-by: lancea, jlaskey

! src/java.base/share/classes/java/lang/String.java