Fix typo

Author: Caspar van Leeuwen

test_suite.sh

@@ -203,7 +203,7 @@ else
     fatal_error "Failed to extract names of tests to run: ${REFRAME_NAME_ARGS}"
     exit ${test_selection_exit_code}
 fi
-# Allow people deploying the bot to overrwide this
+# Allow people deploying the bot to override this
 if [ -z "$REFRAME_SCALE_TAG" ]; then
     REFRAME_SCALE_TAG="--tag 1_node"
 fi