--- a/AbstractOperatingSystem.st	Tue Feb 11 17:47:03 2020 +0100
+++ b/AbstractOperatingSystem.st	Tue Feb 11 18:20:08 2020 +0100
@@ -4700,10 +4700,13 @@
     "Created: / 15-11-2016 / 16:34:10 / cg"
 !
 
-getEnvironment:aStringOrSymbol
-    "get an environment string"
+getEnvironment:aVariableNameStringOrSymbol
+    "get an environment string for the OS environment variable named aVariableNameStringOrSymbol,
+     or nil, if the variable is not present in the environment."
 
     ^ self subclassResponsibility
+
+    "Modified (format): / 11-02-2020 / 18:19:53 / Stefan Vogel"
 !
 
 getHostName