DV-Uploader doesn't detect certain invalid filenames

[donsizemore]

Don't know if this is worth an issue (if not, close it), but if a certain careless user makes two mistakes:

1. Forget to provide the source filename
2. Include an invalid argument, in this case -list-only

DV-Uploader dutifully attempts to upload the last argument, even though I'd expect a file- nor directory name would ever begin with a dash:

java.io.FileNotFoundException: -list-only (The system cannot find the file specified)
        at java.base/java.io.FileInputStream.open0(Native Method)
        at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
        at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
        at org.sead.uploader.util.FileResource.getInputStream(FileResource.java:125)
        at org.sead.uploader.dataverse.DVUploader.multipartDirectFileUpload(DVUploader.java:648)
        at org.sead.uploader.dataverse.DVUploader.uploadDatafile(DVUploader.java:409)
        at org.sead.uploader.AbstractUploader.uploadDatafile(AbstractUploader.java:454)
        at org.sead.uploader.AbstractUploader.processRequests(AbstractUploader.java:205)
        at org.sead.uploader.dataverse.DVUploader.main(DVUploader.java:120)
null

Again, feel free to give this the fabled "Moog" response.