[OSSTEST PATCH 4/5] ts-memdisk-try-append: More defensive case test

[Ian Jackson <iwj@xxxxxxxxxxxxxx>]

Signed-off-by: Ian Jackson <iwj@xxxxxxxxxxxxxx>
---
 ts-memdisk-try-append | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/ts-memdisk-try-append b/ts-memdisk-try-append
index bfb36caf7..d5c12866f 100755
--- a/ts-memdisk-try-append
+++ b/ts-memdisk-try-append
@@ -34,14 +34,14 @@ arch=`perl -I. -we '
 case "$arch" in
 amd64)
     ;;
-'')
-    echo >&2 'Job arch retrieval failed?'
-    exit 1
-    ;;
-*)
+[a-z]*)
     echo "Arch $arch not supported for memdisk tests"
     exit 0
     ;;
+*)
+    echo >&2 'Job arch retrieval failed?'
+    exit 1
+    ;;
 esac
 
 if ./ts-freebsd-host-install --test-boot --record-append $@; then
-- 
2.20.1