Content-Type and Content-Language headers may be truncated in body factory responses

In HttpBodyFactory.cc: HttpBodyFactory::fabricate_with_old_api, there are a few ink_strncpys with sizeof(content_language_out) and sizeof(content_type_out). Those are declared as char array args, but sizeof returns the size of pointer. This truncates the strings to 4 or 8 bytes depending on platform.

HTTP/1.1 404 Not Found on Accelerator
Date: Sat, 03 Apr 2010 07:37:47 GMT
Connection: close
Server: ATS/2.1.0
Cache-Control: no-store
>>>> Content-Type: text/ht <<<<
Content-Language: en
Content-Length: 240