fp ==> Pike_fp

Rev: src/modules/Gdbm/gdbmmod.c:1.10
Rev: src/modules/Gz/zlibmod.c:1.28
Rev: src/modules/Image/blit.c:1.42
Rev: src/modules/Image/colors.c:1.31
Rev: src/modules/Image/colortable.c:1.78
Rev: src/modules/Image/font.c:1.59
Rev: src/modules/Image/image.c:1.164
Rev: src/modules/Image/matrix.c:1.23
Rev: src/modules/Image/operator.c:1.29
Rev: src/modules/Image/orient.c:1.14
Rev: src/modules/Image/pattern.c:1.19
Rev: src/modules/Image/poly.c:1.4
Rev: src/modules/Image/polyfill.c:1.31
Rev: src/modules/Image/search.c:1.15
Rev: src/modules/Math/math_matrix.c:1.13
Rev: src/modules/Parser/html.c:1.91
Rev: src/modules/Regexp/glue.c:1.17
Rev: src/modules/_Crypto/cbc.c:1.15
Rev: src/modules/_Crypto/crypto.c:1.32
Rev: src/modules/_Crypto/des.c:1.15
Rev: src/modules/_Crypto/pipe.c:1.16
Rev: src/modules/_Crypto/rsa.c:1.21
Rev: src/modules/_Image_TIFF/image_tiff.c:1.14
Rev: src/modules/_Image_TTF/image_ttf.c:1.30
Rev: src/modules/call_out/call_out.c:1.34