add test file where extra word is present

here `3-seq` as a matcher, her we got extra-words

Signed-off-by: Alok Kumar <[email protected]>

Author: alok1304

src/licensedcode/detection.py

@@ -1734,7 +1734,7 @@ def analyze_detection(license_matches, package_license=False):
     ):
         return DetectionCategory.LICENSE_CLUES.value
 
-    # Case where all matches have `matcher` as `1-hash` or `4-spdx-id`
+    # Case where all matches have `matcher` as `1-hash` or `4-spdx-id` or 2-aho
     elif is_correct_detection_non_unknown(license_matches=license_matches):
         return DetectionCategory.PERFECT_DETECTION.value