[NFC] Strip trailing whitespace from libc++

Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 6b77ebdc919d9212f50fd353b1da0d84d3815bf3
diff --git a/include/bit b/include/bit
index 8800b22..6dc85b5 100644
--- a/include/bit
+++ b/include/bit
@@ -42,7 +42,7 @@
   template<class T>
     constexpr int popcount(T x) noexcept;     // C++20
 
-  // 20.15.9, endian 
+  // 20.15.9, endian
   enum class endian {
     little = see below,        // C++20
     big = see below,           // C++20
@@ -350,7 +350,7 @@
 bool __ispow2(_Tp __t) _NOEXCEPT
 {
     static_assert(__bitop_unsigned_integer<_Tp>::value, "__ispow2 requires unsigned");
-	return __t != 0 && (((__t & (__t - 1)) == 0)); 
+	return __t != 0 && (((__t & (__t - 1)) == 0));
 }