configure.in: fix quoting brackets

* configure.in (RUBY_UNIVERSAL_ARCH): fix missing quoting
  brackets.  incorporated from
  http://www.opensource.apple.com/source/ruby/ruby-104/patches/configure.diff

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47823 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,9 @@
+Tue Oct  7 10:37:39 2014  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (RUBY_UNIVERSAL_ARCH): fix missing quoting
+	  brackets.  incorporated from
+	  http://www.opensource.apple.com/source/ruby/ruby-104/patches/configure.diff
+
 Mon Oct  6 23:34:42 2014  Masaki Suketa <masaki.suketa@nifty.ne.jp>
 
 	* ext/win32ole/win32ole_param.c: use typed data.

configure.in

@@ -314,8 +314,8 @@ AC_MSG_RESULT([$ARCH_FLAG])
 AC_DEFUN([RUBY_UNIVERSAL_ARCH], [
 # RUBY_UNIVERSAL_ARCH begin
 ARCH_FLAG=`expr " $CFLAGS " : ['.* \(-m[0-9][0-9]*\) ']`
-test ${CFLAGS+set} && CFLAGS=`echo "$CFLAGS" | sed -e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g'`
-test ${LDFLAGS+set} && LDFLAGS=`echo "$LDFLAGS" | sed -e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g'`
+test ${CFLAGS+set} && CFLAGS=`echo "$CFLAGS" | sed [-e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
+test ${LDFLAGS+set} && LDFLAGS=`echo "$LDFLAGS" | sed [-e 's/ *-arch  *[^ ]*//g' -e 's/ *-m32//g' -e 's/ *-m64//g']`
 unset universal_binary universal_archnames
 if test ${target_archs+set}; then
     AC_MSG_CHECKING([target architectures])