[PATCH] t4052: unset $COLUMNS inherited from environment

$COLUMNS must be unset to not interfere with the tests. The tests
already ignore the terminal size because output is redirected to a
file, but $COLUMNS overrides terminal size detection and changes the
test output away from the standard 80 even if not on a terminal.

Reported-by: Jeff King <redacted>
Signed-off-by: Zbigniew Jędrzejewski-Szmek <redacted>
---
Stupid omission. Please apply.

 t/t4052-stat-output.sh |    1 +
 1 file changed, 1 insertion(+)

diff --git a/t/t4052-stat-output.sh b/t/t4052-stat-output.sh
index 328aa8f..1f47f1d 100755
--- a/t/t4052-stat-output.sh
+++ b/t/t4052-stat-output.sh

@@ -17,6 +17,7 @@ test_expect_success 'preparation' '
 	git commit -m message &&
 	echo a >"$name" &&
 	git commit -m message "$name"
+	sane_unset COLUMNS
 '
 
 while read cmd args

-- 
1.7.10.rc1.222.gc0040.dirty