[aisleriot] build: Don't store the timestamp in the compressed file

[Christian Persch <chpe src gnome org>]

commit c2efe4bc49563ee22e3a24403d0869e94fec273a
Author: Christian Persch <chpe gnome org>
Date:   Mon Feb 9 11:51:15 2015 +0100

    build: Don't store the timestamp in the compressed file
    
    https://bugs.debian.org/777507

 cards/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/cards/Makefile.am b/cards/Makefile.am
index b883321..2cd0cd6 100644
--- a/cards/Makefile.am
+++ b/cards/Makefile.am
@@ -1,7 +1,7 @@
 NULL =
 
 XMLLINT_FLAGS = --nonet --noblanks
-GZIP_FLAGS = -9
+GZIP_FLAGS = -9 -n
 
 SVGS = \
        anglo.svg \