[8u40] Request for phase 2 approval for JDK-8067380 - Update nroff to integrate changes made in 8u40

[raymond gallardo]

Requesting approval for:

JDK-8067380 <https://bugs.openjdk.java.net/browse/JDK-8067380>: Update 
nroff to integrate changes made in 8u40

Bug: https://bugs.openjdk.java.net/browse/JDK-8067380
8u-dev webrev: 
http://cr.openjdk.java.net/~rgallard/openjdk_webrev_8u40_2/webrev/
8u-dev review thread: 
http://mail.openjdk.java.net/pipermail/jdk8u-dev/2015-January/002986.html
Reviewers: kvn, mchung, coffeys
Rationale: Last-minute changes to the nroff tools pages

Thanks,
--Raymond