--- a/AbstractOperatingSystem.st	Tue Feb 04 11:35:14 2020 +0100
+++ b/AbstractOperatingSystem.st	Tue Feb 04 11:47:09 2020 +0100
@@ -17,8 +17,8 @@
 
 Object subclass:#AbstractOperatingSystem
 	instanceVariableNames:''
-	classVariableNames:'ConcreteClass ErrorSignal LastErrorNumber LocaleInfo OSSignals
-		PipeFailed Resources VoiceMapping DefaultVoice'
+	classVariableNames:'ConcreteClass DefaultVoice ErrorSignal LastErrorNumber LocaleInfo
+		OSSignals PipeFailed Resources VoiceMapping'
 	poolDictionaries:''
 	category:'System-Support'
 !
@@ -1366,70 +1366,6 @@
     "Created: / 12.11.1998 / 14:39:20 / cg"
 ! !
 
-!AbstractOperatingSystem class methodsFor:'executing OS commands-private'!
-
-shuffleAllFrom:anInStream to:anOutStream lineWise:lineWise lockWith:aLock
-    "This is obsolete but still used in expecco-StandardLibrary 2.11 (and newer)"
-    <resource: #obsolete>
-    <resource: #EXPECCO_API>
-
-    lineWise ifFalse:[
-        ^ anInStream copyToEndInto:anOutStream.
-    ].
-    [anInStream isOpen and:[anInStream atEnd not]] whileTrue:[
-        aLock critical:[
-            self
-                shuffleFrom:anInStream
-                to:anOutStream
-                lineWise:lineWise
-        ]
-    ]
-
-    "Modified (comment): / 20-07-2017 / 17:47:18 / stefan"
-    "Modified: / 19-02-2019 / 23:07:25 / Claus Gittinger"
-!
-
-shuffleFrom:anInStream to:anOutStream lineWise:lineWise
-    "copy data from anInStream to anOutStream.
-     Caller makes sure, that anInStream does not block.
-     anOutstream should have been set to non-blocking-mode"
-
-    "This is obsolete but still used in expecco-StandardLibrary 2.11 (and newer)"
-
-    <resource: #obsolete>
-    <resource: #EXPECCO_API>
-
-    lineWise ifTrue:[
-        |data|
-
-        data := anInStream nextLine.
-        data notNil ifTrue:[
-            anOutStream nextPutLine:data
-        ] .
-    ] ifFalse:[
-        anInStream copyToEndInto:anOutStream.
-    ].
-
-    "Modified (comment): / 20-07-2017 / 17:47:01 / stefan"
-    "Modified: / 19-02-2019 / 23:08:02 / Claus Gittinger"
-!
-
-shuffleRestFrom:anInStream to:anOutStream lineWise:lineWise
-    "This is obsolete but still used in expecco-StandardLibrary 2.11"
-
-    <resource: #obsolete>
-    <resource: #EXPECCO_API>
-
-    [anInStream atEnd] whileFalse:[
-        self
-            shuffleFrom:anInStream
-            to:anOutStream
-            lineWise:lineWise.
-    ].
-
-    "Modified (comment): / 20-07-2017 / 17:46:26 / stefan"
-    "Modified: / 19-02-2019 / 23:08:26 / Claus Gittinger"
-! !
 
 !AbstractOperatingSystem class methodsFor:'executing OS commands-public'!
 
@@ -5888,7 +5824,7 @@
      The fallback here is to use the same encoding as for system calls;
      (which works currently, but who knows...)"
 
-    self encodePathOrCommandInput:aString.
+    ^ self encodePathOrCommandInput:aString.
 
     "Created: / 01-03-2017 / 11:22:27 / cg"
 ! !