[Integrated] RFR: Preserve paragraph breaks when word wrapping

[Robin Westberg]

Changeset: ca1bbe51
Author:    Robin Westberg <rwestberg at openjdk.org>
Date:      2020-02-28 09:24:42 +0000
URL:       https://git.openjdk.java.net/skara/commit/ca1bbe51

Preserve paragraph breaks when word wrapping

Reviewed-by: ehelin

! email/src/main/java/org/openjdk/skara/email/WordWrap.java
! email/src/test/java/org/openjdk/skara/email/WordWrapTests.java