Added first portion of logging adaptation.

Things may be broken at this point - there are still several modules to
be adapted.

ebook_converter/ebooks/txt/markdownml.py

@@ -43,7 +43,8 @@ class MarkdownMLizer(OEB2HTML):
     def mlize_spine(self, oeb_book):
         output = ['']
         for item in oeb_book.spine:
-            self.log.debug('Converting %s to Markdown formatted TXT...' % item.href)
+            self.log.debug('Converting %s to Markdown formatted TXT...',
+                           item.href)
             self.rewrite_ids(item.data, item)
             rewrite_links(item.data, partial(self.rewrite_link, page=item))
             stylizer = Stylizer(item.data, item.href, oeb_book, self.opts, self.opts.output_profile)

ebook_converter/ebooks/txt/textileml.py

@@ -58,7 +58,7 @@ class TextileMLizer(OEB2HTML):
     def mlize_spine(self, oeb_book):
         output = ['']
         for item in oeb_book.spine:
-            self.log.debug('Converting %s to Textile formatted TXT...' % item.href)
+            self.log.debug('Converting %s to Textile formatted TXT...', item.href)
             self.rewrite_ids(item.data, item)
             rewrite_links(item.data, partial(self.rewrite_link, page=item))
             stylizer = Stylizer(item.data, item.href, oeb_book, self.opts, self.opts.output_profile)

ebook_converter/ebooks/txt/txtml.py

@@ -64,7 +64,7 @@ class TXTMLizer(object):
         output = [u'']
         output.append(self.get_toc())
         for item in self.oeb_book.spine:
-            self.log.debug('Converting %s to TXT...' % item.href)
+            self.log.debug('Converting %s to TXT...', item.href)
             for x in item.data.iterdescendants(etree.Comment):
                 if x.text and '--' in x.text:
                     x.text = x.text.replace('--', '__')