fix standalone routine description

releng/README

@@ -258,8 +258,8 @@ some of them according to the general options of the test suite:
 The code piece inc/releng_getopts.inc defines the following functions
 for use by the single tests:
 
-  standalone_or_supervised This is internally called routine to find
-                           out the running mode of the scripts - standalone,
+  standalone_or_supervised This is internally called routine to print out
+                           the running mode of the scripts - standalone,
                            supervised by run_all_auto.
 			   No need to call it from the scripts themselves.