toparity: typo in pretty print

* spot/twaalgos/toparity.cc: Fix pretty print.
8 jobs for adl/385 in 113 minutes and 38 seconds
Status Job ID Name Coverage
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passed #50474
alpine-gcc

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passed #50475
arch-clang

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arch-gcc-glibcxxdebug

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debian-gcc-snapshot

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debian-stable-gcc

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debian-unstable-gcc-coverage

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mingw-shared

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mingw-static

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