fix unary operator expected error
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@ -1,6 +1,6 @@
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#!/bin/sh
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#!/bin/sh
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if [ ${1} = "" ]; then
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if [ "${1}" == "" ]; then
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printf "usage: pmsearch FILTER\n"
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printf "usage: pmsearch FILTER\n"
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exit 1
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exit 1
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fi
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fi
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