Fix doc of the refactored upgrade script

diff --git a/prod/upgrade.sh b/prod/upgrade.sh
index dbc36269eee1a85b8976d2a5b2d13effa05795bd..fb9a797491f9bc7a0a5c757514ef4219f7e65d59 100755 (executable)
--- a/prod/upgrade.sh
+++ b/prod/upgrade.sh
@@ -5,7 +5,7 @@ cd "$(dirname "$0")"/../../
 
 
 function usage() {
-    echo "Script to upgrade the Mezzo instance with various options"
+    echo "upgrade the Mezzo production instance with various options"
     echo ""
     echo "./upgrade.sh"
     echo "  -h --help"