Relax checking of space around : in French.

Allow both variants - with and without space after :. The only
requirement is not space before :.

Need to get in touch with some other French speaking people to confirm
whether only one without space after : should be allowed.

Fixes #287.

trans/checks/chars.py

@@ -127,13 +127,19 @@ class EndColonCheck(TargetCheck):
         'Source and translation do not both end with a colon '
         'or colon is not correctly spaced'
     )
+    colon_fr = (' :', ' :', u' :')
 
     def check_single(self, source, target, unit, cache_slot):
         if self.is_language(unit, ['fr', 'br']):
             if len(target) == 0 or len(source) == 0:
                 return False
             if source[-1] == ':':
-                if target[-3:] not in [' : ', ' : ', u' : ']:
+                # Accept variant with trailing space as well
+                if target[-1] == ' ':
+                    check_string = target[-3:-1]
+                else:
+                    check_string = target[-2:]
+                if check_string not in self.colon_fr:
                     return True
             return False
         if self.is_language(unit, ['ja']):

trans/tests/chars_checks.py

@@ -105,6 +105,9 @@ class EndColonCheckTest(CheckTestCase):
     def test_french(self):
         self.do_test(False, ('Text:', u'Texte : ', ''), 'fr')
 
+    def test_french(self):
+        self.do_test(False, ('Text:', u'Texte :', ''), 'fr')
+
     def test_french_ignore(self):
         self.do_test(False, ('Text', u'Texte', ''), 'fr')