Remove whitespace

docker/build-trigger.sh

@@ -17,7 +17,7 @@ function Main() {(
 
 
   if [ -z "${SOURCE_CONTROL_REF_TYPE}" ] ; then
-    >&2 echo "INFO: Source control reference type provided, skipping build trigger."
+    >&2 echo "INFO: Source control reference type not provided, skipping build trigger."
     exit 0
   fi