diff --git a/lib/lib.go b/lib/lib.go
index 1096e0b..74eaa46 100644
--- a/lib/lib.go
+++ b/lib/lib.go
@@ -13,7 +13,7 @@ var progname = filepath.Base(os.Args[0])
 // ProgName returns what lib thinks the program name is, namely the
 // basename of of argv0.
 //
-// It is similar to the Linux __progname.
+// It is similar to the Linux __progname function.
 func ProgName() string {
 	return progname
 }
@@ -55,15 +55,6 @@ func Err(exit int, err error, format string, a ...interface{}) {
 	os.Exit(exit)
 }
 
-// CheckFatal calls Err if err isn't nil.
-func CheckFatal(err error, format string, a ...interface{}) {
-	if err == nil {
-		return
-	}
-
-	Err(ExitFailure, err, format, a...)
-}
-
 // Itoa provides cheap integer to fixed-width decimal ASCII.  Give a
 // negative width to avoid zero-padding. Adapted from the 'itoa'
 // function in the log/log.go file in the standard library.