leak protection, better than mighty putty

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@7141 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_module_interfaces.h

@@ -301,6 +301,9 @@ struct switch_file_handle {
 	switch_buffer_t *buffer;
 	switch_byte_t *dbuf;
 	switch_size_t dbuflen;
+	const char *file;
+	const char *func;
+	int line;
 };
 
 /*! \brief Abstract interface to an asr module */