fix: more zero matches fixes

avred.py

@@ -166,7 +166,7 @@ def scanFile(args, scanner):
     # convert IntervalTree Matches
     logging.info("Found {} matches".format(len(matchesIt)))
     if len(matchesIt) == 0:
-        logging.warn("No matches found. Try some other options?")
+        logging.warning("No matches found. Try some other options?")
     matches = convertMatchesIt(matchesIt)
 
     verification = None

verifier.py

@@ -35,6 +35,9 @@ def verify(file, matches: List[Match], scanner) -> Verification:
 def verificationAnalyzer(verifications: List[VerificationEntry]) -> MatchConclusion:
     """Do some analysis on the verifications, and return the result"""
     verifyResults = []
+    if len(verifications) == 0:
+        matchConclusions = MatchConclusion(verifyResults)
+        return matchConclusions
 
     matchCount = len(verifications[0].matchTests)
 
@@ -111,6 +114,9 @@ def runVerifications(file, matches: List[Match], scanner) -> List[VerificationEn
         verificationRun.matchTests.append(toTestEntry('', result))
     verificationRuns.append(verificationRun)
 
+    if len(matches) == 1:
+        return verificationRuns
+
     # Incremental, Middle
     verificationRun = VerificationEntry(
         index=2,