emerge: add -U option short for --changed-use

X-Gentoo-Bug: 524426
X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=524426

man/emerge.1

@@ -1,4 +1,4 @@
-.TH "EMERGE" "1" "Sep 2014" "Portage VERSION" "Portage"
+.TH "EMERGE" "1" "Oct 2014" "Portage VERSION" "Portage"
 .SH "NAME"
 emerge \- Command\-line interface to the Portage system
 .SH "SYNOPSIS"
@@ -399,7 +399,7 @@ Creates binary packages for all ebuilds processed without actually
 merging the packages.  This comes with the caveat that all build-time
 dependencies must already be emerged on the system.
 .TP
-.BR "\-\-changed\-use"
+.BR "\-\-changed\-use " (\fB\-U\fR)
 Tells emerge to include installed packages where USE flags have
 changed since installation. This option also implies the
 \fB\-\-selective\fR option. Unlike \fB\-\-newuse\fR, the

pym/_emerge/main.py

@@ -69,7 +69,7 @@
 "r":"--resume",
 "s":"--search",    "S":"--searchdesc",
 "t":"--tree",
-"u":"--update",
+"u":"--update",    "U":"--changed-use",
 "V":"--version"
 }