Each /archive/html/ part can be replace with /r/.
Run this to induce the change:
git grep -l archive/html|xargs perl -pi -e 's,/archive/html/,/r/,g'
* ChangeLog: Perform that substitution.
* Makefile: Likewise.
* STATUS-libposix: Likewise.
* build-aux/bootstrap: Likewise.
* doc/maintain.texi: Likewise.
* gnulib-tool: Likewise.
* lib/allocator.h: Likewise.
* lib/argp-ba.c: Likewise.
* lib/argp-pv.c: Likewise.
* lib/canon-host.c: Likewise.
* lib/canonicalize-lgpl.c: Likewise.
* lib/float.in.h: Likewise.
* lib/fstat.c: Likewise.
* lib/getdelim.c: Likewise.
* lib/getprogname.c: Likewise.
* lib/glthread/thread.h: Likewise.
* lib/intprops.h: Likewise.
* lib/mbsrtowcs-state.c: Likewise.
* lib/safe-read.c: Likewise.
* lib/signal.in.h: Likewise.
* lib/stat.c: Likewise.
* lib/stdbool.in.h: Likewise.
* lib/stdio-impl.h: Likewise.
* lib/stdio.in.h: Likewise.
* lib/sysexits.in.h: Likewise.
* lib/timespec.h: Likewise.
* lib/wcsrtombs-state.c: Likewise.
* m4/alloca.m4: Likewise.
* m4/extern-inline.m4: Likewise.
* m4/fstatat.m4: Likewise.
* m4/gnulib-common.m4: Likewise.
* m4/lib-ignore.m4: Likewise.
* m4/printf.m4: Likewise.
* m4/regex.m4: Likewise.
* m4/stat-size.m4: Likewise.
* m4/std-gnu11.m4: Likewise.
* m4/stdbool.m4: Likewise.
* m4/sys_types_h.m4: Likewise.
* m4/threadlib.m4: Likewise.
* m4/vararrays.m4: Likewise.
* pygnulib/GLImport.py: Likewise.
* tests/test-exp.h: Likewise.
* tests/test-exp2.h: Likewise.
* tests/test-expm1.h: Likewise.
* tests/test-fflush2.c: Likewise.
* tests/test-getopt_long.h: Likewise.
* tests/test-intprops.c: Likewise.
* tests/test-log.h: Likewise.
* tests/test-log10.h: Likewise.
* tests/test-log1p.h: Likewise.
* tests/test-log2.h: Likewise.
* tests/test-printf-posix.h: Likewise.
* tests/test-regex.c: Likewise.
* tests/test-snprintf-posix.h: Likewise.
* tests/test-sprintf-posix.h: Likewise.
* tests/test-stdalign.c: Likewise.
* tests/test-stdbool.c: Likewise.
* tests/test-vasnprintf-posix.c: Likewise.
* tests/test-vasprintf-posix.c: Likewise.
* top/maint.mk: Likewise.