Fix use of `-n' with unquoted envvars #5773
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Shellcheck tells us "-n doesn't work with unquoted arguments. quote or use [[ ]]." And testing shows: ``` docker run --rm -it ubuntu bash root@fe85ce156856:/# [ -n $DOES_NOT_EXIST ] && echo "I ran" I ran root@fe85ce156856:/# [ -n "$DOES_NOT_EXIST" ] && echo "I ran" root@fe85ce156856:/# ```
bagder
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Aug 4, 2020
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Shellcheck tells us "-n doesn't work with unquoted arguments. quote or use [[ ]]."
And testing shows: