Update mikutter to 3.4.8.

Upstream changes:

* fix a bunch of deprecated warnings by recent ruby-gnome2 gdk_pixbuf2 update
 * partially fixed in the past version but fixed more properly
 * also make this work with gdk_pixbuf2 gem 3.0.8 and prior
* crash by --profile option with newer ruby-prof

net/mikutter/Makefile

@@ -1,7 +1,7 @@
-# $NetBSD: Makefile,v 1.130 2016/11/20 02:58:04 tsutsui Exp $
+# $NetBSD: Makefile,v 1.131 2016/12/02 12:54:21 tsutsui Exp $
 #
 
-DISTNAME=	mikutter.3.4.7
+DISTNAME=	mikutter.3.4.8
 PKGNAME=	${RUBY_PKGPREFIX}-${DISTNAME:S/./-/}
 CATEGORIES=	net
 MASTER_SITES=	http://mikutter.hachune.net/bin/

net/mikutter/distinfo

@@ -1,9 +1,9 @@
-$NetBSD: distinfo,v 1.116 2016/11/20 02:58:04 tsutsui Exp $
+$NetBSD: distinfo,v 1.117 2016/12/02 12:54:21 tsutsui Exp $
 
-SHA1 (mikutter.3.4.7.tar.gz) = bdb651123e2243737e089ec0f4fe122a9362b3e3
-RMD160 (mikutter.3.4.7.tar.gz) = 7c7fa63d5a1641e5465402d2c96a0d3721d33ae9
-SHA512 (mikutter.3.4.7.tar.gz) = f4ab0ff7f2d115fa3a69f447614d5d44d4fcf0215ac84c3805026f8bd0fef11c0a4077dc0681a33bdc869bae4a848f104812941efbd63b437cd2825f9f30681c
-Size (mikutter.3.4.7.tar.gz) = 3709805 bytes
+SHA1 (mikutter.3.4.8.tar.gz) = a4c080fbfd1d8a4cc692c818b7d3e4f96da3b5ca
+RMD160 (mikutter.3.4.8.tar.gz) = b5ec717018bd9b2e0cd5605ae226d682a7a5235e
+SHA512 (mikutter.3.4.8.tar.gz) = 2434b91e8be5440367bc9a9b0d5fa97277cbadbb76aae7621c329fa24988e3f2a4338144e0f44a74b1c94a4b644a8ec579872aecd623b47f4808cd129b0d3da5
+Size (mikutter.3.4.8.tar.gz) = 3709789 bytes
 SHA1 (patch-core_plugin_libnotify_rnotify.rb) = 0bb5630f4411d11ad188c722fb1d14e2d6748d17
 SHA1 (patch-core_plugin_photo__support_Gemfile) = 754b96024904e2e2f55c83e88fd3c763eecf723c
 SHA1 (patch-core_plugin_photo__support_photo__support.rb) = d119209d4de835e6d47d85c8ca5209d1f199bd9e