use actual source not ReleaseNotes to check local version

diff --git a/update-openrocket b/update-openrocket
index d84ce7f8204fe0588a0a0354701f9b986caf9309..3cf31a87bf301f7bb0e31585e7fc6ebe063de3a6 100755 (executable)
--- a/update-openrocket
+++ b/update-openrocket
@@ -122,7 +122,7 @@ wgetprogress=' -v --progress=dot:default '
 
 get_installed_version() {
 
-       installed=`unzip -p /usr/lib/openrocket/*.jar ReleaseNotes | head -1 | awk '{ print $2 }'`
+       installed=`unzip -p /usr/lib/openrocket/*.jar build.properties | grep build.version= | awk -F\= '{ print $2 }'`
 }
 
 get_download_url() {