base: Remove the string logging from CHECK().

tools/gn/ninja_toolchain_writer.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "tools/gn/ninja_toolchain_writer.h"
 
 #include <fstream>
 
 #include "base/files/file_util.h"
 #include "base/strings/stringize_macros.h"
@@ skipping 69 matching lines @@
 void NinjaToolchainWriter::WriteToolRule(const Toolchain::ToolType type,
                                          const Tool* tool,
                                          const std::string& rule_prefix) {
   out_ << "rule " << rule_prefix << Toolchain::ToolTypeToName(type)
        << std::endl;
 
   // Rules explicitly include shell commands, so don't try to escape.
   EscapeOptions options;
   options.mode = ESCAPE_NINJA_PREFORMATTED_COMMAND;
 
-  CHECK(!tool->command().empty()) << "Command should not be empty";
+  // Command should not be empty
+  CHECK(!tool->command().empty());
   WriteRulePattern("command", tool->command(), options);
 
   WriteRulePattern("description", tool->description(), options);
   WriteRulePattern("rspfile", tool->rspfile(), options);
   WriteRulePattern("rspfile_content", tool->rspfile_content(), options);
 
   if (tool->depsformat() == Tool::DEPS_GCC) {
     // GCC-style deps require a depfile.
     if (!tool->depfile().empty()) {
       WriteRulePattern("depfile", tool->depfile(), options);
@@ skipping 17 matching lines @@
 
 void NinjaToolchainWriter::WriteRulePattern(const char* name,
                                             const SubstitutionPattern& pattern,
                                             const EscapeOptions& options) {
   if (pattern.empty())
     return;
   out_ << kIndent << name << " = ";
   SubstitutionWriter::WriteWithNinjaVariables(pattern, options, out_);
   out_ << std::endl;
 }