Curl_pp_readresp: replace stupid loop with memcpy

          if(pp->endofresp(conn, pp->linestart_resp, perline, code)) {

            /* This is the end of the last line, copy the last line to the

               start of the buffer and zero terminate, for old times sake */

            char *meow;

            int n;

            for(meow=pp->linestart_resp, n=0; meow<ptr; meow++, n++)

              buf[n] = *meow;

            size_t n = ptr - pp->linestart_resp;

            memcpy(buf, pp->linestart_resp, n);

            buf[n]=0; /* zero terminate */

            keepon=FALSE;

            pp->linestart_resp = ptr+1; /* advance pointer */