bootstrap diagnostics: grep: amsnippet.tmp: No such file or directory

[Jim Meyering]

FYI, before I forget (can't investigate right now)...

Running bootstrap for GNU parted, I saw this on fedora rawhide:

  Copying file ._bootmp/m4/xstrtol.m4
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  cat: amsnippet.tmp: No such file or directory
  Creating ._bootmp/lib/Makefile.am
  Creating ._bootmp/m4/gnulib-cache.m4
  Creating ._bootmp/m4/gnulib-comp.m4
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  grep: amsnippet.tmp: No such file or directory
  Creating ._bootmp/gnulib-tests/Makefile.am
  Creating ./._bootmp/build-aux/.gitignore
  Creating ./._bootmp/doc/.gitignore
  Creating ./._bootmp/gnulib-tests/.gitignore
  Creating ./._bootmp/gnulib-tests/locale/fr/LC_MESSAGES/.gitignore
  Creating ./._bootmp/lib/.gitignore
  Creating ./._bootmp/m4/.gitignore
  Finished.

I'll investigate it eventually, but the resulting build
products are at least good enough to compile and link everything.