fixed a typo

git-svn-id: https://svn.inf.ethz.ch/svn/lecturers/a2/trunk@7656 8c9fc860-2736-0410-a75d-ab315db34111

source/Shell.Mod

@@ -144,7 +144,7 @@ TYPE
 		aliases: Alias;
 		prompt: ARRAY 32 OF CHAR;
 
-		(* Connection to the entiry hosting this shell instance *)
+		(* Connection to the entry hosting this shell instance *)
 		upcall : NotifyProcedure;
 
 		commandHistory : CommandHistory;