radare2: fix inreplace

Fixes Homebrew/homebrew#32337.

Formula/radare2.rb

@@ -37,11 +37,8 @@ class Radare2 < Formula
     resource("bindings").stage do
       ENV.append_path "PKG_CONFIG_PATH", "#{lib}/pkgconfig"
 
-      # OSX build fix from pull request #18.
-      #  * https://github.com/radare/radare2-bindings/pull/18
-      inreplace "python-config-wrapper" do |s|
-        s.gsub! "\s", "\ "
-      end
+      # https://github.com/radare/radare2-bindings/pull/18
+      inreplace "python-config-wrapper", '\s', '\ '
 
       system "./configure", "--prefix=#{prefix}"
       system "make"