Jim Meyering 8ac05f82a2 maint: update quoting of "Try `prog --help'" to "Try 'prog --help'" ...

Automatically adjust both the source (now in only one place)
and all tests that expect the resulting output via this:

git grep -l 'Try.*--help' src/system.h tests \
  | xargs perl -pi -e 's/Try \\?`(\S+ --help)/Try '\''$1/'

2012-01-07 17:18:14 +01:00

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