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t7800: avoid arithmetic expansion notation
The construct "var=$(( something ..." is interpreted by some shells as arithmetic expansion, even when it clearly is not, e.g. var=$((foo; bar) | baz) Avoid the issue by giving an extra SP to help the parser, i.e. var=$( (foo; bar) | baz ) Noticed by Michael J Gruber. Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -289,7 +289,7 @@ test_expect_success PERL 'setup with 2 files different' '
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test_expect_success PERL 'say no to the first file' '
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diff=$((echo n; echo) | git difftool -x cat branch) &&
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diff=$( (echo n; echo) | git difftool -x cat branch ) &&
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echo "$diff" | stdin_contains m2 &&
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echo "$diff" | stdin_contains br2 &&
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@ -298,7 +298,7 @@ test_expect_success PERL 'say no to the first file' '
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'
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test_expect_success PERL 'say no to the second file' '
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diff=$((echo; echo n) | git difftool -x cat branch) &&
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diff=$( (echo; echo n) | git difftool -x cat branch ) &&
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echo "$diff" | stdin_contains master &&
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echo "$diff" | stdin_contains branch &&
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