[voltLib] minor formatting

Lib/fontTools/voltLib/lexer.py

@@ -30,10 +30,10 @@ class Lexer(object):
     def __iter__(self):
         return self
 
-    def next(self): # Python 2
+    def next(self):  # Python 2
         return self.__next__()
 
-    def __next__(self): # Python 3
+    def __next__(self):  # Python 3
         while True:
             token_type, token, location = self.next_()
             if token_type not in {Lexer.NEWLINE}:
@@ -66,7 +66,7 @@ class Lexer(object):
             self.scan_until_('"\r\n')
             if self.pos_ < self.text_length_ and self.text_[self.pos_] == '"':
                 self.pos_ += 1
-                return (Lexer.STRING, text[start + 1:self.pos_ -1], location)
+                return (Lexer.STRING, text[start + 1:self.pos_ - 1], location)
             else:
                 raise VoltLibError("Expected '\"' to terminate string",
                                    location)

Lib/fontTools/voltLib/lexer_test.py

@@ -8,6 +8,7 @@ import unittest
 def lex(s):
     return [(typ, tok) for (typ, tok, _) in Lexer(s, "test.vtp")]
 
+
 class LexerTest(unittest.TestCase):
     def __init__(self, methodName):
         unittest.TestCase.__init__(self, methodName)