Fix a spelling error. (Lintian)
Forwarded: yes
https://github.com/BVLC/caffe/pull/4236
--- a/src/caffe/layers/memory_data_layer.cpp
+++ b/src/caffe/layers/memory_data_layer.cpp
@@ -107,7 +107,7 @@
 template <typename Dtype>
 void MemoryDataLayer<Dtype>::Forward_cpu(const vector<Blob<Dtype>*>& bottom,
       const vector<Blob<Dtype>*>& top) {
-  CHECK(data_) << "MemoryDataLayer needs to be initalized by calling Reset";
+  CHECK(data_) << "MemoryDataLayer needs to be initialized by calling Reset";
   top[0]->Reshape(batch_size_, channels_, height_, width_);
   top[1]->Reshape(batch_size_, 1, 1, 1);
   top[0]->set_cpu_data(data_ + pos_ * size_);
