Update variables_file.rst

[nullHawk]

Added _filesize variable as mentioned in "metabrainz/picard#2361"

Summary

This is a…

• Correction
• Addition
• Restructuring
• Minor / simple change (like a typo)
• Other

Reason for the Change

Added _filesize variable as mentioned in "metabrainz/picard#2361"

Description of the Change

Additional Action Required

[zas]

AFAIK, units should not be capitalized but if they are named after a proper name (like Celsius). Even if abbreviation is (B for byte, but that's because b is used for bit).

[rdswift]

@nullHawk, please also add your name to the list of contributors in about_picard/acknowledgements.rst. Note that the ordering is alphabetical by surname.

[nullHawk]

AFAIK, units should not be capitalized but if they are named after a proper name (like Celsius). Even if abbreviation is (B for byte, but that's because b is used for bit).

Thank you for mentioning it, I will keep that in mind from now onwards

[nullHawk]

@nullHawk, please also add your name to the list of contributors in about_picard/acknowledgements.rst. Note that the ordering is alphabetical by surname.

Ok, got it

[phw]

Thanks again, merged