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Tweak sanitizing shell name
Handles situation when the output is `/bin/shell- args...`. First strip away the arguments, then the trailing dash.
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@ -34,8 +34,8 @@ done
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shell="$1"
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if [ -z "$shell" ]; then
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shell="$(ps -p "$PPID" -o 'args=' 2>/dev/null || true)"
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shell="${shell##-}"
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shell="${shell%% *}"
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shell="${shell##-}"
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shell="${shell:-$SHELL}"
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shell="${shell##*/}"
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fi
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