powertop: pull in gettext fix from upstream

Upstream had gettext listed in RDEPEND when it should be in DEPEND
only.  Newer revs fixed it, so pull that in.

BUG=chromium-os:19429
TEST=`dev_install` no longer complains about missing gettext

Change-Id: I04d2fc4017c9b3907b6db904cba6a0e92c18e3b4
Previous-Reviewed-on: https://gerrit.chromium.org/gerrit/43200
(cherry picked from commit 8ebb617d83955deeaf91164f3b156456ed88820d)
Reviewed-on: https://gerrit.chromium.org/gerrit/43731
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/sys-power/powertop/powertop-2.0.ebuild b/sys-power/powertop/powertop-2.0.ebuild
index 3036188..f5bd404 100644
--- a/sys-power/powertop/powertop-2.0.ebuild
+++ b/sys-power/powertop/powertop-2.0.ebuild
@@ -21,15 +21,17 @@
 SLOT="0"
 IUSE="unicode"
 
-DEPEND="
+COMMON_DEPEND="
 	dev-libs/libnl
 	sys-apps/pciutils
-	sys-devel/gettext
 	sys-libs/ncurses[unicode?]
 	sys-libs/zlib
 "
+DEPEND="${COMMON_DEPEND}
+	sys-devel/gettext
+"
 RDEPEND="
-	${DEPEND}
+	${COMMON_DEPEND}
 	x11-apps/xset
 "