Change validation for file to only exclude absolute file paths

Signed-off-by: Gary O'Neall <gary@sourceauditor.com>

Author: goneall

src/main/java/org/spdx/library/model/SpdxFile.java

@@ -269,8 +269,8 @@ protected List<String> _verify(Set<String> verifiedIds, String specVersion) {
 			Optional<String> myName = this.getName();
 			if (myName.isPresent()) {
 				fileName = myName.get();
-				if (!fileName.startsWith("./")) {
-					retval.add("File name name must be relative - starting with './'.  Found "+fileName);
+				if (fileName.startsWith("/")) {
+					retval.add("File name name must be relative - the name must not start with a '/'.  Found "+fileName);
 				}
 			} else {
 				retval.add("Missing required file name");

src/test/java/org/spdx/library/model/SpdxFileTest.java

@@ -501,5 +501,10 @@ public void testVerifyNonLocalFileName() throws InvalidSPDXAnalysisException {
 				.build();
 		result = file2.verify();
 		assertTrue(result.isEmpty());
+		SpdxFile file3 = gmo.createSpdxFile(gmo.getModelStore().getNextId(IdType.SpdxId, gmo.getDocumentUri()),
+				"filename", COMPLEX_LICENSE, Arrays.asList(CONJUNCTIVE_LICENSES), SpdxConstants.NOASSERTION_VALUE, SHA1)
+				.build();
+		result = file3.verify();
+		assertTrue(result.isEmpty());
 	}
 }