@@ -118,7 +118,7 @@ class ExtProgram : public Elements::Program {
      *  2) the configuration file
      *  3) the command line
      *
-     *  If an none of the three options provide any values for a mandatory
+     *  If none of the three options provide any values for a mandatory
      *  argument, you should check if your option has any values following the
      *  below example. Note that this may happen for all options without default
      *  values.
Original file line number	Diff line number	Diff line change
`@@ -118,7 +118,7 @@ class ExtProgram : public Elements::Program {`
`118`	`118`	`* 2) the configuration file`
`119`	`119`	`* 3) the command line`
`120`	`120`	`*`
`121`		`- * If an none of the three options provide any values for a mandatory`
	`121`	`+ * If none of the three options provide any values for a mandatory`
`122`	`122`	`* argument, you should check if your option has any values following the`
`123`	`123`	`* below example. Note that this may happen for all options without default`
`124`	`124`	`* values.`