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>

Junio C Hamano committed Oct 14, 2011 at 11:07 UTC 15a31e78852f4ede5335552875006daeedfc3aa7
1 file changed +2 -2
t/t7800-difftool.sh
+2 -2
@@ -289,7 +289,7 @@ test_expect_success PERL 'setup with 2 files different' '
289 '
290
291 test_expect_success PERL 'say no to the first file' '
292 - diff=$((echo n; echo) | git difftool -x cat branch) &&
292 + diff=$( (echo n; echo) | git difftool -x cat branch ) &&
293
294 echo "$diff" | stdin_contains m2 &&
295 echo "$diff" | stdin_contains br2 &&
@@ -298,7 +298,7 @@ test_expect_success PERL 'say no to the first file' '
298 '
299
300 test_expect_success PERL 'say no to the second file' '
301 - diff=$((echo; echo n) | git difftool -x cat branch) &&
301 + diff=$( (echo; echo n) | git difftool -x cat branch ) &&
302
303 echo "$diff" | stdin_contains master &&
304 echo "$diff" | stdin_contains branch &&