tests: use byte literals in test-storage.py
This fixes a Python 3 breakage due to unknown key due to str/bytes type
mismatch.
# skip-blame just b'' literals
Differential Revision: https://phab.mercurial-scm.org/D5114
BasedOnStyle: LLVM
IndentWidth: 8
UseTab: ForIndentation
BreakBeforeBraces: Linux
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
AllowShortBlocksOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
IncludeCategories:
- Regex: '^<'
Priority: 1
- Regex: '^"'
Priority: 2