fix: infinite loop in vsscanf whitespace processing

[lachlanharrisdev]

Resolves #501

Fixes an infinite loop within the vsscanf function due to incrementing the incorrect variable when processing whitespace. While the loop correctly skipped whitespace in the format string, this loop was only caused by whitespace in the input string.

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[lachlanharrisdev]

OCA has been signed, waiting approval from oracle

[alflr]

Thanks for signing -- not sure why this has not been approved (yet).

[AlexanderEichner]

Hi, your OCA got rejected since you provided an incomplete mailing address.

[lachlanharrisdev]

Apologies, the form made it very unclear whether it was company or personal address. I've submitted a new application

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