Merge pull request #3519 from sjackman/svn

Fix a test failure when svn is not installed

Library/Homebrew/test/utils/svn_spec.rb

@@ -7,7 +7,11 @@ describe Utils do
     end
 
     it "returns svn version if svn available" do
-      expect(described_class.svn_available?).to be_truthy
+      if File.executable? "/usr/bin/svn"
+        expect(described_class.svn_available?).to be_truthy
+      else
+        expect(described_class.svn_available?).to be_falsey
+      end
     end
   end