Update dependency tslint to v5.20.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
tslint (source)	5.17.0 -> 5.20.1

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Release Notes

palantir/tslint

v5.20.1

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No changes from v5.20.0, just re-released to correctly mark with the latest dist-tag on NPM.

v5.20.0

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• [bugfix] fix strict-boolean-expressions false positive with "ignore-rhs" option (#​4833)
• [bugfix] fix no-unnecessary-type-assertion no error when "strict": true in compiler flags (#​4841)
• [bugfix] "ignore" option for file-name-casing rule works correctly (#​4848)
• [bugfix] fix array-type false positive for simple parenthesized types with "array-simple" option (#​4844)
• [new-rule-option]object-literal-shorthand supports {"property"?: "never", "method"?: "never"} as config options (#​4842)
• [new-rule-option]: allow-generics option for invalid-void rule (#​4839)
• [new-rule-option] check-super-calls option for unnecessary-constructor rule (#​4813)
• [chore] Upgrade diff dependency to v4.0.1 (#​4845, #​4852)

Thanks to our contributors!

• Bas Bosman
• Tanmoy Bhowmik
• David Zulaica
• Maxime Kjaer
• @​guidsdo
• Pavel Birukov
• Josh Goldberg
• Akshaya Srivatsa

v5.19.0

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• [bugfix] relax promise-function-async for short parenthesized arrow functions (#​4765)
• [bugfix] fix no-async-without-await false positive for abstract methods (#​4782)
• [bugfix] fix strict-comparisons false positive for null and undefined literals (#​4786)
• [bugfix] improve no-angle-bracket-type-assertion autofix semantics with more parentheses (#​4823)
• [enhancement] add BigInt support to restrict-plus-operands rule (#​4814)
• [enhancement]await-promise now supports new TypeScript 3.6 AST API symbols for async iterators (#​4800)
• [new-rule-option] check-strings and check-regex options for max-line-length rule (#​4798)
• [new-rule-option] variable-declaration-ignore-function option for typedef rule (#​4769)
• [new-rule-option] ignore-blank-lines option for object-literal-sort-keys rule (#​4808)
• [new-rule]no-for-in (#​4747)
• [new-rule]invalid-void (#​4736)
• [new-rule]strict-string-expressions reports errors on type coercions found in string expressions (#​4807)
• [new-rule]no-promise-as-boolean (#​4790)
• [docs] link to OSS fellowship medium post in README (#​4821)

Thanks to our contributors!

• Josh Pike
• Tanmoy Bhowmik
• Michael Withagen
• Evgeniy Timokhov
• Vitalij Krotov
• Josh Goldberg
• Veda
• Guido
• Robert Fink
• Max Sysoev

v5.18.0

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• [feature] New --print-config CLI flag (#​4744)
• [bugfix]no-unnecessary-type-assertion no longer flags x! non-null assertions if --strictNullChecks is not enabled (#​3724)
• [bugfix]quotemark handles unbalanced quotes more gracefully without crashing (#​4344)
• [docs] Add tslint-playground link to README and bug report template (#​4150)
• [enhancement]no-magic-numbers rule ignores arguments passed into default Number methods (#​3668)
• [new-fixer]comment-format (#​3583)
• [new-rule-option] "allow-trailing-lowercase" option for comment-format rule (#​3583)
• [new-rule-option] "ignore-accessors" for adjacent-overload-signatures to ignore getters / setters overloads (#​3718)
• [new-rule]no-async-without-await (#​3945)
• [new-rule]strict-comparisons (#​4519)

Thanks to our contributors!

• Josh Goldberg
• smoehrle
• Mateusz Witkowski
• Andy Hanson
• John Wiseheart
• Eran Shabi
• Tibor Blenessy
• AndreasGassmann
• Ryan Waskiewicz
• Isabelle

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