Add comment to describe file content.

The name of the file is not really explicit. This patch adds doxygen
to have an easy to use description in the generated documentation.

src/detect-engine-hcbd.c

@@ -18,6 +18,10 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP request body match corresponding to http_client_body
+ * keyword.
+ *
  */
 
 #include "suricata-common.h"

src/detect-engine-hcd.c

@@ -18,6 +18,9 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP cookie match
+ *
  */
 
 #include "suricata-common.h"

src/detect-engine-hhd.c

@@ -18,6 +18,9 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP header match
+ *
  */
 
 #include "suricata-common.h"

src/detect-engine-hmd.c

@@ -18,6 +18,9 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP method match
+ *
  */
 
 #include "suricata-common.h"

src/detect-engine-hrhd.c

@@ -18,6 +18,9 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP raw header match.
+ *
  */
 
 #include "suricata-common.h"

src/detect-engine-hrud.c

@@ -18,6 +18,8 @@
 /** \file
  *
  * \author Anoop Saldanha <poonaatsoc@gmail.com>
+ *
+ * \brief Handle HTTP raw uri match
  */
 
 #include "suricata-common.h"