--- a/Collection.st	Wed May 29 01:51:33 2019 +0200
+++ b/Collection.st	Wed May 29 03:43:44 2019 +0200
@@ -360,7 +360,6 @@
     ^ self == Collection
 ! !
 
-
 !Collection methodsFor:'Compatibility-ANSI'!
 
 identityIncludes:anObject
@@ -383,10 +382,12 @@
 
 addIfNotPresent:anObject
     "Include anObject as one of the receiver's elements, but only if there
-    is no such element already. Anwser anObject."
+     is no such element already. Answer anObject."
 
     (self includes: anObject) ifFalse: [self add: anObject].
     ^ anObject
+
+    "Modified (comment): / 29-05-2019 / 03:43:32 / Claus Gittinger"
 !
 
 anyOne