Little spelling fix (#695)

* Fixed spelling of "occurred"

* Fix spelling of occurred.

* fixed one lingering misspelling

Author: amandabee

tests/unit/test_exceptions.py

@@ -2,7 +2,7 @@
 
 
 def test_user_error_problems():
-    e = exceptions.UserError('A few problems occured', problems=[
+    e = exceptions.UserError('A few problems occurred', problems=[
         'Problem one',
         'Problem two',
         'Problem three'
@@ -11,4 +11,4 @@ def test_user_error_problems():
     assert 'one' in str(e)
     assert 'two' in str(e)
     assert 'three' in str(e)
-    assert 'problems occured' in str(e)
+    assert 'problems occurred' in str(e)

vdirsyncer/cli/utils.py

@@ -144,9 +144,9 @@ def handle_cli_error(status_name=None, e=None):
         import traceback
         tb = traceback.format_tb(tb)
         if status_name:
-            msg = 'Unknown error occured for {}'.format(status_name)
+            msg = 'Unknown error occurred for {}'.format(status_name)
         else:
-            msg = 'Unknown error occured'
+            msg = 'Unknown error occurred'
 
         msg += ': {}\nUse `-vdebug` to see the full traceback.'.format(e)