Pike_error -> error fixes.

Rev: .how_to_build_from_scratch:1.7
Rev: src/backend.c:1.62
Rev: src/block_alloc.h:1.27
Rev: src/builtin_functions.c:1.319
Rev: src/cpp.c:1.79
Rev: src/docode.c:1.89
Rev: src/dynamic_load.c:1.48
Rev: src/encode.c:1.79
Rev: src/error.c:1.67
Rev: src/fd_control.c:1.35
Rev: src/interpret.c:1.178
Rev: src/interpret_functions.h:1.35
Rev: src/interpreter.h:1.53
Rev: src/las.c:1.229
Rev: src/lexer.h:1.26
Rev: src/modules/Gz/gz_test.c:1.5
Rev: src/modules/HTTPLoop/accept_and_parse.c:1.22
Rev: src/modules/Image/colors.c:1.42
Rev: src/modules/Image/colortable.c:1.102
Rev: src/modules/Image/colortable.h:1.24
Rev: src/modules/Image/encodings/_xpm.c:1.16
Rev: src/modules/Image/encodings/pcx.c:1.15
Rev: src/modules/Image/encodings/png.c:1.41
Rev: src/modules/Image/encodings/psd.c:1.27
Rev: src/modules/Image/encodings/tga.c:1.26
Rev: src/modules/Image/encodings/xbm.c:1.13
Rev: src/modules/Image/encodings/xcf.c:1.35
Rev: src/modules/Image/image.c:1.184
Rev: src/modules/Image/image.h:1.46
Rev: src/modules/Image/layers.c:1.59
Rev: src/modules/Image/match.h:1.12
Rev: src/modules/Image/operator.c:1.35
Rev: src/modules/Image/poly.c:1.12
Rev: src/modules/Java/jvm.c:1.31
Rev: src/modules/Math/math_matrix.c:1.20
Rev: src/modules/Msql/msqlmod.c:1.16
Rev: src/modules/Mysql/mysql.c:1.39
Rev: src/modules/Mysql/precompiled_mysql.h:1.11
Rev: src/modules/Mysql/result.c:1.18
Rev: src/modules/Odbc/odbc.c:1.24
Rev: src/modules/Oracle/oracle.c:1.52
Rev: src/modules/Perl/perlmod.c:1.23
Rev: src/modules/Pipe/pipe.c:1.45
Rev: src/modules/Postgres/postgres.c:1.21
Rev: src/modules/Yp/yp.c:1.21
Rev: src/modules/_Charset/charsetmod.c:1.26
Rev: src/modules/_Crypto/crypto.c:1.41
Rev: src/modules/_Crypto/des.c:1.19
Rev: src/modules/_Image_GIF/image_gif.c:1.3
Rev: src/modules/_Image_JPEG/image_jpeg.c:1.37
Rev: src/modules/_Image_TIFF/image_tiff.c:1.23
Rev: src/modules/_Image_TTF/image_ttf.c:1.38
Rev: src/modules/_math/math.c:1.35
Rev: src/modules/files/efuns.c:1.89
Rev: src/modules/files/file.c:1.205
Rev: src/modules/files/sendfile.c:1.53
Rev: src/modules/files/termios.c:1.11
Rev: src/modules/files/udp.c:1.19
Rev: src/modules/spider/xml.c:1.30
Rev: src/modules/sybase/sybase.c:1.6
Rev: src/modules/sybase/sybase.h:1.3
Rev: src/modules/system/nt.c:1.29
Rev: src/modules/system/system.c:1.95
Rev: src/object.c:1.155
Rev: src/opcodes.c:1.96
Rev: src/peep.c:1.45
Rev: src/pike_error.h:1.4
Rev: src/pike_types.c:1.145
Rev: src/port.c:1.35
Rev: src/post_modules/GL/auto.c.in:1.17
Rev: src/post_modules/GTK/build_pgtk.pike:1.38
Rev: src/post_modules/GTK/dependencies:1.6
Rev: src/post_modules/GTK/pgtk.h:1.19
Rev: src/post_modules/GTK/source/gdkbitmap.pre:1.8
Rev: src/post_modules/GTK/source/gdkcolor.pre:1.8
Rev: src/post_modules/GTK/source/gdkdragcontext.pre:1.8
Rev: src/post_modules/GTK/source/gdkevent.pre:1.5
Rev: src/post_modules/GTK/source/gdkfont.pre:1.7
Rev: src/post_modules/GTK/source/gdkimage.pre:1.9
Rev: src/post_modules/GTK/source/gdkpixmap.pre:1.10
Rev: src/post_modules/GTK/source/gdkrectangle.pre:1.7
Rev: src/post_modules/GTK/source/gdkregion.pre:1.8
Rev: src/post_modules/GTK/source/gdkwindow.pre:1.14
Rev: src/post_modules/GTK/source/gladexml.pre:1.10
Rev: src/post_modules/GTK/source/global.pre:1.17
Rev: src/post_modules/GTK/source/gnomeapp.pre:1.9
Rev: src/post_modules/GTK/source/gnomedialog.pre:1.6
Rev: src/post_modules/GTK/source/gnomemessagebox.pre:1.5
Rev: src/post_modules/GTK/source/gtkadjustment.pre:1.7
Rev: src/post_modules/GTK/source/gtkcalendar.pre:1.5
Rev: src/post_modules/GTK/source/gtkclist.pre:1.9
Rev: src/post_modules/GTK/source/gtkcombo.pre:1.5
Rev: src/post_modules/GTK/source/gtkctree.pre:1.7
Rev: src/post_modules/GTK/source/gtkdatabox.pre:1.3
Rev: src/post_modules/GTK/source/gtkobject.pre:1.6
Rev: src/post_modules/GTK/source/gtkpixmap.pre:1.7
Rev: src/post_modules/GTK/source/gtksocket.pre:1.8
Rev: src/post_modules/GTK/source/gtkwidget.pre:1.12
Rev: src/post_modules/GTK/source/support.c:1.20
Rev: src/preprocessor.h:1.36
Rev: src/program.c:1.286
Rev: src/signal_handler.c:1.186
Rev: src/smartlink.c:1.12
Rev: src/stralloc.c:1.112
Rev: src/svalue.h:1.72
Rev: src/threads.c:1.149
Rev: src/threads.h:1.108