more typos fixed

contrib/epee/include/net/http_client.h

@@ -509,7 +509,7 @@ using namespace std;
 							if(0 == chunk_size)
 							{
 								//Here is a small confusion
-								//In breif - if the chunk is the last one we need to get terminating sequence
+								//In brief - if the chunk is the last one we need to get terminating sequence
 								//along with the cipher, generally in the "ddd\r\n\r\n" form
 
 								for(it++;it != buff.end(); it++)

src/common/varint.h

@@ -36,7 +36,7 @@
 #include <sstream>
 #include <string>
 /*! \file varint.h
- * \breif provides the implementation of varint's
+ * \brief provides the implementation of varint's
  * 
  * The representation of varints is rather odd. The first bit of each
  * octet is significant, it represents wheter there is another part

src/serialization/serialization.h

@@ -29,10 +29,10 @@
 // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
 
 /*! \file serialization.h 
- *  \breif Simple DSL AAPI based on 
+ *  \brief Simple DSL AAPI based on
  *
  * \detailed is_blob_type and  has_free_serializer are
- * both descriptors for dispatching on to the serailize function.
+ * both descriptors for dispatching on to the serialize function.
  *
  * The API itself defines a domain specific language via dirty macro
  * hacks. Greenspun's tenth rule is very much in action throughout