fix fix_e265 comment

I have a py file like this:

```bash
$cat comment.py 
# coding=utf-8

# Subtleties:
# - we don't *completely* ignore the last line; if it contains
#   the magical "# noqa" comment, we disable all physical
#   checks for the entire multiline string
# - have to wind self.line_number back because initially it
#   points to the last line of the string, and we want
```
But when i use autopep8:

```bash
python autopep8.py comment.py --diff   
--- original/comment.py
+++ fixed/comment.py
@@ -2,7 +2,7 @@
 
 # Subtleties:
 # - we don't *completely* ignore the last line; if it contains
-#   the magical "# noqa" comment, we disable all physical
+# the magical "# noqa" comment, we disable all physical
 #   checks for the entire multiline string
 # - have to wind self.line_number back because initially it
 #   points to the last line of the string, and we want
```

Because this line has two '#', but there don't say `comment `