changes empty message for watch expressions

package.json

@@ -76,7 +76,7 @@
         "c9.ide.find": "#e632ecf4be",
         "c9.ide.find.infiles": "#ad9ff74638",
         "c9.ide.find.replace": "#8468067976",
-        "c9.ide.run.debug": "#f10c7e7d19",
+        "c9.ide.run.debug": "#81d5d1d59c",
         "c9.automate": "#47e2c429c9",
         "c9.ide.ace.emmet": "#6dc4585e02",
         "c9.ide.ace.gotoline": "#d33220b1e0",