Tweak commit message when using filename.

Author: sowerstl

src/main/java/gov/osti/services/Metadata.java

@@ -1975,7 +1975,7 @@ private static void processOSTIGitLab(DOECodeMetadata md, String filePath, Strin
             }
 
             String prefix;
-            String detail = uploadFile;
+            String detail = fileName;
             if (adds == 1 && updates == 0 && deletes == 0) {
                 prefix = "Adding";
             }