blacklist -> exclusions: heap.py

[echristo]

Summary

As part of using inclusive language with the llvm project migrate away from the use of blacklist and whitelist.

lldb/examples/darwin/heap_find/heap.py

 def append_regex_callback(option, opt, value, parser):
     try:
         ivar_regex = re.compile(value)
-        parser.values.ivar_regex_blacklist.append(ivar_regex)
+        parser.values.ivar_regex_exclusions.append(ivar_regex)
     except:
         print('error: an exception was thrown when compiling the ivar regular expression for "%s"' % value)
 

         type='string',
         action='callback',
         callback=append_regex_callback,
-        dest='ivar_regex_blacklist',
+        dest='ivar_regex_exclusions',
         default=[],
         help='specify one or more regular expressions used to backlist any matches that are in ivars')
     parser.add_option(

                                                 member_path += '.'
                                             member_path += member_name
                                     if member_path:
-                                        if options.ivar_regex_blacklist:
-                                            for ivar_regex in options.ivar_regex_blacklist:
+                                        if options.ivar_regex_exclusions:
+                                            for ivar_regex in options.ivar_regex_exclusions:
                                                 if ivar_regex.match(
                                                         member_path):
                                                     print_entry = False