Convert gn docstrings to C++11 raw strings.

tools/gn/function_set_defaults.cc

Index: tools/gn/function_set_defaults.cc
diff --git a/tools/gn/function_set_defaults.cc b/tools/gn/function_set_defaults.cc
index 7f26b4455c9f4a8dde2b9f349bd0de7566631dfc..ff64f1661effb46bb065c7282aa89aa178ab623d 100644
--- a/tools/gn/function_set_defaults.cc
+++ b/tools/gn/function_set_defaults.cc
@@ -13,37 +13,36 @@ const char kSetDefaults[] = "set_defaults";
 const char kSetDefaults_HelpShort[] =
     "set_defaults: Set default values for a target type.";
 const char kSetDefaults_Help[] =
-    "set_defaults: Set default values for a target type.\n"
-    "\n"
-    "  set_defaults(<target_type_name>) { <values...> }\n"
-    "\n"
-    "  Sets the default values for a given target type. Whenever\n"
-    "  target_type_name is seen in the future, the values specified in\n"
-    "  set_default's block will be copied into the current scope.\n"
-    "\n"
-    "  When the target type is used, the variable copying is very strict.\n"
-    "  If a variable with that name is already in scope, the build will fail\n"
-    "  with an error.\n"
-    "\n"
-    "  set_defaults can be used for built-in target types (\"executable\",\n"
-    "  \"shared_library\", etc.) and custom ones defined via the \"template\"\n"
-    "  command. It can be called more than once and the most recent call in\n"
-    "  any scope will apply, but there is no way to refer to the previous\n"
-    "  defaults and modify them (each call to set_defaults must supply a\n"
-    "  complete list of all defaults it wants). If you want to share\n"
-    "  defaults, store them in a separate variable.\n"
-    "\n"
-    "Example\n"
-    "\n"
-    "  set_defaults(\"static_library\") {\n"
-    "    configs = [ \"//tools/mything:settings\" ]\n"
-    "  }\n"
-    "\n"
-    "  static_library(\"mylib\")\n"
-    "    # The configs will be auto-populated as above. You can remove it if\n"
-    "    # you don't want the default for a particular default:\n"
-    "    configs -= \"//tools/mything:settings\"\n"
-    "  }\n";
+    R"(set_defaults: Set default values for a target type.
+
+  set_defaults(<target_type_name>) { <values...> }
+
+  Sets the default values for a given target type. Whenever target_type_name is
+  seen in the future, the values specified in set_default's block will be
+  copied into the current scope.
+
+  When the target type is used, the variable copying is very strict. If a
+  variable with that name is already in scope, the build will fail with an
+  error.
+
+  set_defaults can be used for built-in target types ("executable",
+  "shared_library", etc.) and custom ones defined via the "template" command.
+  It can be called more than once and the most recent call in any scope will
+  apply, but there is no way to refer to the previous defaults and modify them
+  (each call to set_defaults must supply a complete list of all defaults it
+  wants). If you want to share defaults, store them in a separate variable.
+
+Example
+
+  set_defaults("static_library") {
+    configs = [ "//tools/mything:settings" ]
+  }
+
+  static_library("mylib")
+    # The configs will be auto-populated as above. You can remove it if
+    # you don't want the default for a particular default:
+    configs -= [ "//tools/mything:settings" ]
+  })";
 
 Value RunSetDefaults(Scope* scope,
                      const FunctionCallNode* function,