[Ohrrpgce] SVN: teeemcee/11406 Inside thingbrowser quit_if_add_cancelled was always NO due to typo

[subversion at HamsterRepublic.com]

teeemcee
2019-11-17 23:27:00 -0800 (Sun, 17 Nov 2019)
219
Inside thingbrowser quit_if_add_cancelled was always NO due to typo

I'm not sure where this codepath can actually be called from, so I haven't
ensured that this doesn't break anything, but the code was obviously wrong.
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U   wip/thingbrowser.bas