Add Elf 32 Support to Courgette.

courgette/bsdiff_memory_unittest.cc

Index: courgette/bsdiff_memory_unittest.cc
diff --git a/courgette/bsdiff_memory_unittest.cc b/courgette/bsdiff_memory_unittest.cc
index ce80eb775467bbb0aa108cb40dd28c853e9d47ea..f1718e2aa9e7be5b019c9011e426df0d25ed3c8b 100644
--- a/courgette/bsdiff_memory_unittest.cc
+++ b/courgette/bsdiff_memory_unittest.cc
@@ -117,3 +117,9 @@ TEST_F(BSDiffMemoryTest, TestDifferentExes) {
   std::string file2 = FileContents("setup2.exe");
   GenerateAndTestPatch(file1, file2);
 }
+
+TEST_F(BSDiffMemoryTest, TestDifferentElfs) {
+  std::string file1 = FileContents("elf-32-1");
+  std::string file2 = FileContents("elf-32-2");
+  GenerateAndTestPatch(file1, file2);
+}