Allow _clang-format as alternative to .clang-format config filename
Dotfiles are impractical on Windows. This makes clang-format search
for the style configuration file as '_clang-format' in addition to
the usual '.clang-format'. This is similar to how VIM searches for
'_vimrc' on Windows.
Differential Revision: http://llvm-reviews.chandlerc.com/D1629
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190413 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/docs/ClangFormatStyleOptions.rst b/docs/ClangFormatStyleOptions.rst
index 658e285..69b6cee 100644
--- a/docs/ClangFormatStyleOptions.rst
+++ b/docs/ClangFormatStyleOptions.rst
@@ -16,8 +16,8 @@
:program:`clang-format` supports two ways to provide custom style options:
directly specify style configuration in the ``-style=`` command line option or
-use ``-style=file`` and put style configuration in the ``.clang-format`` file
-in the project directory.
+use ``-style=file`` and put style configuration in the ``.clang-format`` or
+``_clang-format`` file in the project directory.
When using ``-style=file``, :program:`clang-format` for each input file will
try to find the ``.clang-format`` file located in the closest parent directory