#Patch by Jesus Rivero <neurogeek@gentoo.org>
#Sent upstream on 2011-07-20
diff -uNr yolk-0.4.1.orig/yolk/cli.py yolk-0.4.1/yolk/cli.py
--- yolk-0.4.1.orig/yolk/cli.py	2008-08-11 10:36:54.000000000 -0400
+++ yolk-0.4.1/yolk/cli.py	2011-07-20 10:53:26.000000000 -0400
@@ -830,10 +830,12 @@
         """
         pprinter = pprint.PrettyPrinter()
         try:
-            pprinter.pprint(pkg_resources.get_entry_map(self.options.entry_map))
+            entry_map = pkg_resources.get_entry_map(self.options.show_entry_map)
+            if entry_map:
+                pprinter.pprint(entry_map)
         except pkg_resources.DistributionNotFound:
             self.logger.error("Distribution not found: %s" \
-                    % self.options.entry_map)
+                    % self.options.show_entry_map)
             return 1
         return 0