Add the m option to help message

Author: soimkim

src/fosslight_source/_help.py

@@ -20,6 +20,7 @@
         Optional
             -h\t\t\t\t   Print help message
             -j\t\t\t\t   Generate additional result of executing ScanCode in json format
+            -m\t\t\t\t   Print the Matched text for each license on a separate sheet
             -o <file_name>\t\t   Output file name"""
 
 _HELP_MESSAGE_CONVERT = """
@@ -33,6 +34,7 @@
 
         Optional
             -h\t\t\t\t   Print help message
+            -m\t\t\t\t   Print the Matched text for each license on a separate sheet
             -o <file_name>\t\t   Output file name"""