clean up unnecessary commas

Author: matthewbastien

Sources/SourceKitLSP/Documentation/DocCServer.swift

@@ -61,7 +61,7 @@ package struct DocCServer {
         identifier: documentationBundleIdentifier,
         defaultCodeListingLanguage: nil,
         defaultAvailability: nil,
-        defaultModuleKind: nil,
+        defaultModuleKind: nil
       ),
       externalIDsToConvert: externalIDsToConvert,
       documentPathsToConvert: documentPathsToConvert,

Tests/LanguageServerProtocolTests/CodingTests.swift

@@ -1063,7 +1063,7 @@ final class CodingTests: XCTestCase {
       expected: DoccDocumentationRequest(
         textDocument: TextDocumentIdentifier(try DocumentURI(string: "file:///some/path")),
         position: Position(line: 4, utf16index: 17)
-      ),
+      )
     )
   }