Enhance runperl doc to mention its return value

diff --git a/t/test.pl b/t/test.pl
index cdd72ea..5b1ee18 100644 (file)
--- a/t/test.pl
+++ b/t/test.pl
@@ -548,7 +548,7 @@ USE_OK
     }
 }
 
-# runperl - Runs a separate perl interpreter.
+# runperl - Runs a separate perl interpreter and returns its output.
 # Arguments :
 #   switches => [ command-line switches ]
 #   nolib    => 1 # don't use -I../lib (included by default)