.clang-format

verify: use some intermediate variables instead of a multi-liner

This is shorter and easier to read as the indentation remains the same.

We extract the long message in a module level constant for clarity.

Differential Revision: https://phab.mercurial-scm.org/D10819

BasedOnStyle: LLVM
IndentWidth: 8
UseTab: ForIndentation
BreakBeforeBraces: Linux
AllowShortIfStatementsOnASingleLine: false
IndentCaseLabels: false
AllowShortBlocksOnASingleLine: false
AllowShortFunctionsOnASingleLine: false
IncludeCategories:
  - Regex:           '^<'
    Priority:        1
  - Regex:           '^"'
    Priority:        2