initial: re-vendor @ c00e0fa

c00e0fa avoid converting objects twice
baafe10 fix doc comment

initial.d

@@ -218,7 +218,7 @@ struct INISection
 		keys = new string[string];
 	}
 
-	/+
+	/++
 	 + Returns the value of `k` in this section or
 	 + `defaultValue` if the key is not present.
 	 +/
@@ -234,10 +234,10 @@ struct INISection
 	 + with a message containing location information.
 	 +/
 	T
-	keyAs(T)(string k, string defaultValue = null)
+	keyAs(T)(string k, T defaultValue)
 	{
 		try
-			return key(k, defaultValue).to!T();
+			return k in keys ? keys[k].to!T() : defaultValue;
 		catch (ConvException)
 			throw new INITypeException(
 				format!"unable to convert [%s].%s to %s"(name, k, T.stringof));