[4.8 branch] Handle svn 1.8.1

[Andreas Jaeger]

I'd like to backport this patch from trunk to handle subversion 1.8.1
output.

Ok to commit?

Andreas

2013-10-21  Mike Stump  <mikest...@comcast.net>

        * gcc_update (configure): Update to handle svn 1.8.1.

Index: contrib/gcc_update
===================================================================
--- contrib/gcc_update  (revision 203886)
+++ contrib/gcc_update  (working copy)
@@ -382,7 +382,7 @@
        fi

        revision=`$GCC_SVN info | awk '/Revision:/ { print $2 }'`
-       branch=`$GCC_SVN info | sed -ne "/URL:/ {
+       branch=`$GCC_SVN info | sed -ne "/^URL:/ {
            s,.*/trunk,trunk,
            s,.*/branches/,,
            s,.*/tags/,,

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