Fix ns macro metadata regression (#1175)

Fixes #1173

Author: chrisrink10

CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
  * `alter-var-root` now returns the new value to align with Clojure behavior. Updated the docstring to highlight side effects of direct linking optimization (#1166)
 
+### Fixed
+ * Fix a regression introduced in #1161 which prevented passing namespace metadata on the name in the `ns` macro (#1173)
+
 ## [v0.3.4]
 ### Added
  * Added support for the optional `attr-map?` on the `ns` macro (#1159)

src/basilisp/core.lpy

@@ -5291,6 +5291,7 @@
                    (first opts))
         metadata (merge (->> (meta name)
                              (remove #(= (namespace (key %)) "basilisp.lang.reader"))
+                             (mapcat identity)
                              (apply hash-map))
                         {:doc doc}
                         attr-map)