appliance: While building don't just check empty arg, check if it was passed

The fix makes systemvmtemplate as the default veewee vbox appliance if not
other appliance is provided to be built

Signed-off-by: Rohit Yadav <[email protected]>


Project: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/repo
Commit: 
http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/commit/9af338c6
Tree: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/tree/9af338c6
Diff: http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/diff/9af338c6

Branch: refs/heads/ui-multiple-nics
Commit: 9af338c651f2dc21875dc748233aba5b93dc3989
Parents: bc36612
Author: Rohit Yadav <[email protected]>
Authored: Tue Mar 12 17:56:43 2013 +0530
Committer: Rohit Yadav <[email protected]>
Committed: Tue Mar 12 17:58:15 2013 +0530

----------------------------------------------------------------------
 tools/appliance/build.sh |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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http://git-wip-us.apache.org/repos/asf/incubator-cloudstack/blob/9af338c6/tools/appliance/build.sh
----------------------------------------------------------------------
diff --git a/tools/appliance/build.sh b/tools/appliance/build.sh
index d18faaf..f1ee4a6 100644
--- a/tools/appliance/build.sh
+++ b/tools/appliance/build.sh
@@ -18,7 +18,7 @@
 
 set -x
 
-if [ "$1"!="" ]
+if [ ! -z "$1" ]
 then
   appliance="$1"
 else

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