SERVER-18796: sh.status() show 'dropped:false' colls again

Specifically:

* printShardingStatus()/sh.status() show collections with missing 'dropped' field
* Don't omit 'dropped:false' in config.collections
* Add jstest for basic validation of printShardingStatus() output

1 files changed, 1 insertions, 4 deletions

diff --git a/src/mongo/s/catalog/type_collection.cpp b/src/mongo/s/catalog/type_collection.cpp
index 7a125e52062..1d466314edb 100644
--- a/src/mongo/s/catalog/type_collection.cpp
+++ b/src/mongo/s/catalog/type_collection.cpp
@@ -180,14 +180,11 @@ BSONObj CollectionType::toBSON() const {
     }
     builder.append(epoch.name(), _epoch.get_value_or(OID()));
     builder.append(updatedAt.name(), _updatedAt.get_value_or(Date_t()));
+    builder.append(dropped.name(), _dropped.get_value_or(false));
 
     // These fields are optional, so do not include them in the metadata for the purposes of
     // consuming less space on the config servers.
 
-    if (_dropped.is_initialized()) {
-        builder.append(dropped.name(), _dropped.get());
-    }
-
     if (_keyPattern.is_initialized()) {
         builder.append(keyPattern.name(), _keyPattern->toBSON());
     }