[bug-gawk] Missing double quotes in SYMTAB example in docs

[Jaromir Obr]

Hi,

in https://www.gnu.org/software/gawk/manual/gawk.html#index-differences-in-awk-and-gawk_002c-SYMTAB-variable there is an example:

# Indirect multiply of any variable by amount, return result

function multiply(variable, amount)
{
    return SYMTAB[variable] *= amount
}

There are missing double quotes around variable, aren't they ? (expected is return SYMTAB["variable"] *= amount

Regards

Jaromir