hgcia: fix diffstat support

hgext/hgcia.py

@@ -113,7 +113,7 b' class ciamsg(object):'
                 # diffstat is stupid
                 self.name = 'cia'
             def write(self, data):
-                self.lines.append(data)
+                self.lines += data.splitlines(True)
             def close(self):
                 pass