Make file formatting comply with POSIX and Unix standards

UTF-8, LF, no BOM, and newlines at the end of files

bench/spbench/test_sparseLU.cpp

@@ -90,4 +90,4 @@ int main(int argc, char **args)
   cout << "Number of nonzeros in the factor : " << solver.nnzL() + solver.nnzU() << std::endl; 
   
   return 0;
-}
+}