Fixed uninitialized value in pattern match
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@ -3866,7 +3866,7 @@ sub subst_alert_macros ($$;$$$$) {
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my $macro_regexp = join('|', keys %{$macros});
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my $macro_regexp = join('|', keys %{$macros});
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my $subst_func;
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my $subst_func;
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if ($string =~ m/^(?:(")(?:.*)"|(')(?:.*)')$/) {
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if (defined($string) && $string =~ m/^(?:(")(?:.*)"|(')(?:.*)')$/) {
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my $quote = $1 ? $1 : $2;
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my $quote = $1 ? $1 : $2;
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$subst_func = sub {
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$subst_func = sub {
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my $macro = on_demand_macro($pa_config, $dbh, shift, $macros, $agent, $module);
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my $macro = on_demand_macro($pa_config, $dbh, shift, $macros, $agent, $module);
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