remote: parsing of fetch information now reacts to fatal errors. Previously it would just bump into an assertion

Author: Byron

lib/git/remote.py

@@ -595,6 +595,8 @@ def _get_fetch_info_from_stderr(self, proc, progress):
 			elif line.startswith('warning:'):
 				print >> sys.stderr, line
 				continue
+			elif line.startswith('fatal:'):
+				raise GitCommandError("Error when fetching: %s" % line)
 			# END handle special messages
 			fetch_info_lines.append(line)
 		# END for each line