bpo-36239: Skip comments in gettext infos (GH-12255)

diff --git a/Lib/gettext.py b/Lib/gettext.py
index 72a313a..b98f501 100644
--- a/Lib/gettext.py
+++ b/Lib/gettext.py
@@ -417,6 +417,9 @@
                     item = b_item.decode().strip()
                     if not item:
                         continue
+                    # Skip over comment lines:
+                    if item.startswith('#-#-#-#-#') and item.endswith('#-#-#-#-#'):
+                        continue
                     k = v = None
                     if ':' in item:
                         k, v = item.split(':', 1)