Fix an uninitialized variable warning when building with GCC.

Change-Id: I6f24553a9c4dfb59e05778f19406aefa058b6342
diff --git a/examples/libmv_bundle_adjuster.cc b/examples/libmv_bundle_adjuster.cc
index 60b1382..118e534 100644
--- a/examples/libmv_bundle_adjuster.cc
+++ b/examples/libmv_bundle_adjuster.cc
@@ -267,6 +267,7 @@
       uint32_t value;
     } endian_test = { { 0, 1, 2, 3 } };
     host_endian_type_ = endian_test.value;
+    file_endian_type_ = host_endian_type_;
   }
 
   ~EndianAwareFileReader(void) {