Changed the DefaultSection constant to a variable so that it may be a…

…ltered for use with aws cli configs.

ini.go

@@ -23,15 +23,15 @@ import (
 )
 
 const (
-	// DefaultSection is the name of default section. You can use this constant or the string literal.
-	// In most of cases, an empty string is all you need to access the section.
-	DefaultSection = "DEFAULT"
-
 	// Maximum allowed depth when recursively substituing variable names.
 	depthValues = 99
 )
 
 var (
+	// DefaultSection is the name of default section. You can use this var or the string literal.
+	// In most of cases, an empty string is all you need to access the section.
+	DefaultSection = "DEFAULT"
+
 	// LineBreak is the delimiter to determine or compose a new line.
 	// This variable will be changed to "\r\n" automatically on Windows at package init time.
 	LineBreak = "\n"