Fix printf formatting

position.go

@@ -6,13 +6,11 @@ import (
 	"fmt"
 )
 
-/*
-  Position of a document element within a TOML document.
-
-  Line and Col are both 1-indexed positions for the element's line number and
-  column number, respectively.  Values of zero or less will cause Invalid(),
-  to return true.
-*/
+// Position of a document element within a TOML document.
+//
+// Line and Col are both 1-indexed positions for the element's line number and
+// column number, respectively.  Values of zero or less will cause Invalid(),
+// to return true.
 type Position struct {
 	Line int // line within the document
 	Col  int // column within the line
@@ -24,7 +22,7 @@ func (p *Position) String() string {
 	return fmt.Sprintf("(%d, %d)", p.Line, p.Col)
 }
 
-// Returns whether or not the position is valid (i.e. with negative or
+// Invalid returns whether or not the position is valid (i.e. with negative or
 // null values)
 func (p *Position) Invalid() bool {
 	return p.Line <= 0 || p.Col <= 0