[analyzer] Fix target attribute of the log parser
The target attribute should be a dictionary which contains strings instead
of dictionary of dictionary.
@@ -962,7 +962,7 @@ def parse_options(compilation_db_entry,
'output': '',
'lang': None,
'arch': '', # Target in the compile command set by -arch.
- 'target': defaultdict(dict),
+ 'target': defaultdict(str),
'source': ''}
if 'arguments' in compilation_db_entry:
