Report up-to-date packages as such

pkg/omf/functions/packages/omf.packages.update.fish

 function omf.packages.update -a name
-  if set target_path (omf.packages.path $name)
+  if not set target_path (omf.packages.path $name)
+    echo (omf::err)"Could not find $name."(omf::off) 1>&2
+    return 1
+  end
+
   # Skip packages outside version control
   not test -e $target_path/.git;
     and return 0
 
-    if omf.repo.pull $target_path
+  omf.repo.pull $target_path
+  switch $status
+    case 0
       omf.bundle.install $target_path/bundle
       echo (omf::em)"$name successfully updated."(omf::off)
-      return 0
-    else
-      echo (omf::err)"Could not update $name."(omf::off) 1^&2
-    end
-  else
-    echo (omf::err)"Could not find $name."(omf::off) 1^&2
+    case 1
+      echo (omf::err)"Could not update $name."(omf::off) 1>&2
+      return 1
+    case 2
+      echo (omf::dim)"$name is already up-to-date."(omf::off)
   end
 
-  return 1
+  return 0
 end