Correct indentation levels in various files.

Signed-off-by: Chris Lamb <lamby@debian.org>

diffoscope/__main__.py

@@ -176,7 +176,7 @@ def run_diffoscope(parsed_args):
             with make_printer(parsed_args.html_output) as print_func:
                 output_html(difference, css_url=parsed_args.css_url, print_func=print_func)
         if parsed_args.html_output_directory:
-                output_html_directory(parsed_args.html_output_directory, difference, css_url=parsed_args.css_url, jquery_url=parsed_args.jquery_url)
+            output_html_directory(parsed_args.html_output_directory, difference, css_url=parsed_args.css_url, jquery_url=parsed_args.jquery_url)
         if parsed_args.text_output:
             with make_printer(parsed_args.text_output or '-') as print_func:
                 output_text(difference, print_func=print_func)

diffoscope/comparators/icc.py

@@ -27,7 +27,7 @@ from diffoscope.difference import Difference
 class Iccdump(Command):
     @tool_required('cd-iccdump')
     def cmdline(self):
-          return ['cd-iccdump', self.path]
+        return ['cd-iccdump', self.path]
 
 
 class IccFile(File):