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-rwxr-xr-xt/test-lib.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/t/test-lib.sh b/t/test-lib.sh
index e2629339d..e75ad5faa 100755
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -34,7 +34,7 @@ export GIT_AUTHOR_EMAIL GIT_AUTHOR_NAME
export GIT_COMMITTER_EMAIL GIT_COMMITTER_NAME
export EDITOR VISUAL
-case $(echo $GIT_TRACE |tr [A-Z] [a-z]) in
+case $(echo $GIT_TRACE |tr "[A-Z]" "[a-z]") in
1|2|true)
echo "* warning: Some tests will not work if GIT_TRACE" \
"is set as to trace on STDERR ! *"