[NFC] Make comment consistent with allow|ignore list renamings

clang/lib/Driver/SanitizerArgs.cpp

else if (BL.Mask == SanitizerKind::CFI && DiagnoseErrors)
       // should fail.
       D.Diag(clang::diag::err_drv_missing_sanitizer_ignorelist) << Path;
   }
   validateSpecialCaseListFormat(
       D, IgnorelistFiles, clang::diag::err_drv_malformed_sanitizer_ignorelist,
       DiagnoseErrors);
 }
 
-/// Parse -f(no-)?sanitize-(coverage-)?(white|ignore)list argument's values,
+/// Parse -f(no-)?sanitize-(coverage-)?(allow|ignore)list argument's values,
 /// diagnosing any invalid file paths and validating special case list format.
 static void parseSpecialCaseListArg(const Driver &D,
                                     const llvm::opt::ArgList &Args,
                                     std::vector<std::string> &SCLFiles,
                                     llvm::opt::OptSpecifier SCLOptionID,
                                     llvm::opt::OptSpecifier NoSCLOptionID,
                                     unsigned MalformedSCLErrorDiagID,
                                     bool DiagnoseErrors) {
   for (const auto *Arg : Args) {
-    // Match -fsanitize-(coverage-)?(white|ignore)list.
+    // Match -fsanitize-(coverage-)?(allow|ignore)list.
     if (Arg->getOption().matches(SCLOptionID)) {
       Arg->claim();
       std::string SCLPath = Arg->getValue();
       if (D.getVFS().exists(SCLPath)) {
         SCLFiles.push_back(SCLPath);
       } else if (DiagnoseErrors) {
         D.Diag(clang::diag::err_drv_no_such_file) << SCLPath;
       }
if (CoverageFeatures &
         (CoverageTracePC | CoverageTracePCGuard | CoverageInline8bitCounters |
          CoverageInlineBoolFlag))
       CoverageFeatures |= CoverageEdge;
 
     if (CoverageFeatures & CoverageStackDepth)
       CoverageFeatures |= CoverageFunc;
   }
 
-  // Parse -fsanitize-coverage-(ignore|white)list options if coverage enabled.
+  // Parse -fsanitize-coverage-(allow|ignore)list options if coverage enabled.
   // This also validates special case lists format.
   // Here, OptSpecifier() acts as a never-matching command-line argument.
   // So, there is no way to clear coverage lists but you can append to them.
   if (CoverageFeatures) {
     parseSpecialCaseListArg(
         D, Args, CoverageAllowlistFiles,
         options::OPT_fsanitize_coverage_allowlist, OptSpecifier(),
         clang::diag::err_drv_malformed_sanitizer_coverage_allowlist,