fix author extraction

Reference: aboutcode-org#4229

Author: alok1304

src/cluecode/copyrights.py

@@ -389,12 +389,12 @@ def detect(self,
                     yield author
 
 
-def get_tokens(numbered_lines, splitter=re.compile(r'[\t =;]+').split):
+def get_tokens(numbered_lines, splitter=re.compile(r'[\t =;:]+').split):
     """
     Return an iterable of pygmars.Token built from a ``numbered_lines`` iterable
     of tuples of (line number, text).
 
-    We perform a simple tokenization on spaces, tabs and some punctuation: =;
+    We perform a simple tokenization on spaces, tabs and some punctuation: =;:
     """
     last_line = ""
     for start_line, line in numbered_lines:
@@ -3426,8 +3426,8 @@ def build_detection_from_node(
     # by  Yukihiro Matsumoto matz@netlab.co.jp.
     # AUTH: {<BY> <NAME>}        #2645-3
 
-    # @author anatol@google.com (Anatol Pomazau)
-    AUTHOR: {<AUTH|CONTRIBUTORS|AUTHS>+ <NN>? <COMPANY|NAME|YR-RANGE>* <BY>? <EMAIL>+ <NAME>?}        #2650
+    # @author anatol@google.com (Anatol Pomazau) or Author:Frankie.Chu
+    AUTHOR: {<AUTH|CONTRIBUTORS|AUTHS>+ <NN>? <COMPANY|NAME|YR-RANGE>* <BY>? <EMAIL>? <NAME>?}        #2650
 
     # developed by the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign
     AUTHOR: {<AUTH|CONTRIBUTORS|AUTHS>+ <NN>? <COMPANY|NAME|NAME-EMAIL|NAME-YEAR>+ <NN>? <COMPANY|NAME|NAME-EMAIL|NAME-YEAR>+ <YR-RANGE>*}       #2660