Fixing a typo and shortening the wording a bit.

Author: AaronBallman

clang/lib/Frontend/InitPreprocessor.cpp

@@ -1109,8 +1109,8 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
   // wide. See C23 6.2.6.2p2 for the rules in C. Note that
   // C++23 [basic.fundamental]p10 allows an implementation-defined value
   // representation for bool; when lowing to LLVM, Clang represents bool as an
-  // i8 in memory but as an i1 needing the value, so '1' is also correct for
-  // C++ for our implementation.
+  // i8 in memory but as an i1 when the value is needed, so '1' is also correct
+  // for C++.
   Builder.defineMacro("__BOOL_WIDTH__", "1");
   Builder.defineMacro("__SHRT_WIDTH__", Twine(TI.getShortWidth()));
   Builder.defineMacro("__INT_WIDTH__", Twine(TI.getIntWidth()));