cleanup WLED_RELEASE_NAME only if present

Author: netmindz

Diff for: pio-scripts/output_bins.py

@@ -19,8 +19,9 @@ def _create_dirs(dirs=["map", "release", "firmware"]):
         os.makedirs(os.path.join(OUTPUT_DIR, d), exist_ok=True)
 
 def create_release(source):
-    release_name = _get_cpp_define_value(env, "WLED_RELEASE_NAME").replace("\\\"", "")
-    if release_name:
+    release_name_def = _get_cpp_define_value(env, "WLED_RELEASE_NAME")
+    if release_name_def:
+        release_name = release_name_def.replace("\\\"", "")
         version = _get_cpp_define_value(env, "WLED_VERSION")
         release_file = os.path.join(OUTPUT_DIR, "release", f"WLED_{version}_{release_name}.bin")
         release_gz_file = release_file + ".gz"