Bugfix in warning message

steg.py

         res += c
     if not end:
         if len(payload) > 0:
-            warnings.warn(
-                'Unable to hide all payload. %d bytes not hidden : "%s"' % (
-                    len(payload), repr(payload)))
+	    if len(payload) > 100:
+                warnings.warn(
+                    'Unable to hide all payload. %d bytes not hidden' % (
+                        len(payload)))
+            else:
+                warnings.warn(
+                    'Unable to hide all payload. %d bytes not hidden : "%s"' % (
+                        len(payload), repr(payload)))
         if cur_shift != 8:
             warnings.warn(
                 'last byte not complete. %d bits missing' % (8 - cur_shift))