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lstk: allow getting multiple stack traces

--- a/rc/bin/lstk

+++ b/rc/bin/lstk

@@ -1,10 +1,7 @@

 #!/bin/rc

-if(~ $#* 1)

-	p=$1

-if not if(~ $#* 0)

-	p=`{ps | grep Broken | awk '{print $2}' | sort -n | tail -n 1}

-if not

-	p 'usage: $0 [broken]' >[2=1]

-

-echo 'lstk()' | acid $p

+procs=$*

+if(~ $#* 0)

+	procs=`{ps | grep Broken | awk '{print $2}' | sort -n | tail -n 1}

+for(p in $procs)

+	echo 'lstk()' | acid $p

-- 

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