Revert "removed redundant comment in format::getStyle."

This reverts commit r264254.

llvm-svn: 264256
diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 40ff01f..6d03b62 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -2144,7 +2144,8 @@
 
     llvm::sys::path::append(ConfigFile, ".clang-format");
     DEBUG(llvm::dbgs() << "Trying " << ConfigFile << "...\n");
-
+    // Ignore errors from is_regular_file: we only need to know if we can read
+    // the file or not.
     Status = FS->status(ConfigFile.str());
     bool IsFile =
         Status && (Status->getType() == llvm::sys::fs::file_type::regular_file);