Fix recent linting issues

Looks like flake8 deps pulled in newer versions of
either pep8 of pyflakes that is causing new failures.
I'd like to keep the existing code passing as is, so
I've made a small change for pep8 compliance but otherwise
just ignored the new suggestions.

Author: jamesls

Makefile

@@ -7,7 +7,7 @@ check:
 	# No unused imports, no undefined vars,
 	# follow pep8, and max cyclomatic complexity of 15.
 	# I'd eventually like to lower this down to < 10.
-	flake8 --exclude awsshell/compat.py --max-complexity 15 awsshell/*.py
+	flake8 --ignore=E731,W503 --exclude awsshell/compat.py --max-complexity 15 awsshell/*.py
 	#
 	#
 	##### DOC8 ######

awsshell/fuzzy.py

@@ -73,7 +73,7 @@ def calculate_score(search_string, word):
         else:
             scale = 1 - (i / float(len(word)))
         score *= scale
-        word = word[i+1:]
+        word = word[i + 1:]
         search_index += 1
         if search_index >= len(search_string):
             break