dev-perl/Test-Base: remove unneeded stable on exp arches

Keywording note:
 ~mips ~s390 ~sh ~x86-fbsd still broken via Text-Diff

Package-Manager: portage-2.3.0

dev-perl/Test-Base/Test-Base-0.600.0-r1.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2014 Gentoo Foundation
+# Copyright 1999-2016 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
@@ -11,7 +11,7 @@ inherit perl-module
 DESCRIPTION="A Data Driven Testing Framework"
 
 SLOT="0"
-KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ~ppc64 s390 sh sparc x86 ~x86-fbsd ~x86-freebsd ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos"
+KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ~ppc64 ~s390 ~sh sparc x86 ~x86-fbsd ~x86-freebsd ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos"
 IUSE=""
 
 DEPEND=">=virtual/perl-Test-Simple-0.62