warning removed

Rev: src/modules/image/togif.c:1.2
Rev: src/modules/pipe/pipe.c:1.4
Rev: src/modules/regexp/regexp.c:1.2
Rev: src/modules/spider/encode_decode.c:1.2
Rev: src/modules/spider/sharedmem.c:1.3
Rev: src/modules/spider/sharedmem.h:1.2
Rev: src/modules/spider/spider.c:1.8
Rev: src/modules/spider/streamed_parser.c:1.2