Fix error checking at module-add

diff --git a/share/hydra/module-add b/share/hydra/module-add
index a226d4aa1acdb0f276cee62bb8d4ef50d00c9d37..c47a7e36bff5e4a2e793e368c0c1da8d1acbbaaf 100755 (executable)
--- a/share/hydra/module-add
+++ b/share/hydra/module-add
@@ -31,8 +31,8 @@ function hydra_module_add {
   if [ -z "$MODULE" ]; then
     echo "Usage: hydra <hydra> module-add <module> [<module1> ... <moduleN>]"
     exit 1
-  elif [ ! -d "$PUPPET/modules/$MODULE" ]; then
-    echo "No such module $MODULE at $HYDRA puppet configuration."
+  elif [ -d "$PUPPET/modules/$MODULE" ]; then
+    echo "Module $MODULE already added at $HYDRA puppet configuration."
     exit 1
   fi