diff --git a/tuf/__init__.py b/tuf/__init__.py
index 503e4fcf..13964980 100755
--- a/tuf/__init__.py
+++ b/tuf/__init__.py
@@ -134,9 +134,9 @@ def __init__(self, metadata_role, previous_version, current_version):
 
 
   def __str__(self):
-    return str(self.metadata_role)+' is older than the version currently'+\
-      'installed.\nDownloaded version: '+repr(self.previous_version)+'\n'+\
-      'Current version: '+repr(self.current_version)
+    return 'Downloaded '+str(self.metadata_role)+' is older ('+\
+           str(self.previous_version)+') than the version currently '+\
+           'installed ('+repr(self.current_version)+').'
 
 
 
diff --git a/tuf/client/updater.py b/tuf/client/updater.py
index 1d924f8c..fc1f9d3c 100755
--- a/tuf/client/updater.py
+++ b/tuf/client/updater.py
@@ -1021,7 +1021,7 @@ def __get_file(self, filepath, verify_uncompressed_file, file_type,
 
       except Exception, exception:
         # Remember the error from this mirror, and "reset" the target file.
-        logger.exception('Download failed from '+file_mirror+'.')
+        logger.exception('Update failed from '+file_mirror+'.')
         file_mirror_errors[file_mirror] = exception
         file_object = None
       else:
@@ -1030,8 +1030,8 @@ def __get_file(self, filepath, verify_uncompressed_file, file_type,
     if file_object:
       return file_object
     else:
-      logger.exception('Failed to download {0}: {1}'.format(filepath,
-                       file_mirror_errors))
+      logger.exception('Failed to update {0} from all mirrors: {1}'.format(
+                       filepath, file_mirror_errors))
       raise tuf.NoWorkingMirrorError(file_mirror_errors)
 
 
@@ -1744,6 +1744,7 @@ def _ensure_not_expired(self, metadata_role):
     # returned by time.time() (i.e., current time), before comparing.
     if tuf.formats.parse_time(expires) < time.time():
       message = 'Metadata '+repr(rolepath)+' expired on '+repr(expires)+'.'
+      logger.error(message)
       raise tuf.ExpiredMetadataError(message)
 
 
diff --git a/tuf/log.py b/tuf/log.py
index 7987ec94..347cca63 100755
--- a/tuf/log.py
+++ b/tuf/log.py
@@ -141,8 +141,11 @@ def filter(self, record):
       # most useful for the console handler, which we do not wish to deluge
       # with too much data. Assuming that this filter is not applied to the
       # file logging handler, the user may always consult the file log for the
-      # original exception traceback.
-      record.exc_text = str(record.exc_info)
+      # original exception traceback. The exc_info is explained here:
+      # http://docs.python.org/2/library/sys.html#sys.exc_info
+      exc_type, exc_value, exc_traceback = record.exc_info
+      # Simply set the class name as the exception text.
+      record.exc_text = exc_type.__name__
 
     # Always return True to signal that any given record must be formatted.
     return True
diff --git a/tuf/tests/repository_setup.py b/tuf/tests/repository_setup.py
old mode 100755
new mode 100644
diff --git a/tuf/tests/unittest_toolbox.py b/tuf/tests/unittest_toolbox.py
old mode 100755
new mode 100644