Modifying the way results of OPTION_RGX.search(line) are exploited

pylint/checkers/format.py

@@ -1000,8 +1000,12 @@ class FormatChecker(BaseTokenChecker):
                 # Don't count excess whitespace in the line length.
                 line = stripped_line
             mobj = OPTION_RGX.search(line)
-            if mobj and mobj.group(1).split('=', 1)[0].strip() == 'disable':
-                line = line.split('#')[0].rstrip()
+            if mobj:
+                front_of_equal, back_of_equal = mobj.group(1).split('=', 1)
+                if front_of_equal.strip() == 'disable':
+                    if 'line-too-long' in [_msg_id.strip() for _msg_id in back_of_equal.split(',')]:
+                        return
+                    line = line.rsplit('#', 1)[0].rstrip()
             if len(line) > max_chars and not ignore_long_line.search(line):
                 self.add_message('line-too-long', line=i, args=(len(line), max_chars))