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Adventures in localization [01362578353]
When a linuxcnc developer reported testsuite failures, a fellow developer
discovered that our tests don't run right in non-English locales—in particular,
locales like de_DE where the decimal separator is "," instead of ".". But I'm
not here to talk about how to fix the testsuite. Instead, get a load of this
behavior inside a bash that was started with LC_ALL=C:
$ printf "%f\n" 1.23
1.230000
$ LC_ALL=de_DE.UTF-8 printf "%f\n" 1.23
1.230000
$ env LC_ALL=de_DE.UTF-8 printf "%f\n" 1.23
1,230000