in gold/src/hyper/search.pamphlet
{
        a[n] = $0;
        n=n+1;
        j=split($0,b,"{");
        m=m+substr(b[j],1,length(b[j])-1);
}

but in sandbox it reads: 
{
        a[n] = $0;
        n=n+1;
        j=split($0,b,"{");
        if (j >= 2)
          m=m+substr(b[2],1,length(b[2])-1);
}

i don't understand this change. 
can someone explain it?
 
t


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