repair file

src/grade-openmp.sh

 #!/bin/bash
 
 if [ "$#" -ne 2 ]; then
-    echo "Usage: ./autograde.sh 13518056 13518104"
+    echo "Usage: ./autograde.sh <nim> <openmp_output_directory>"
     exit
 fi
 

src/grade-openmpi.sh

 #!/bin/bash
 
 if [ "$#" -ne 2 ]; then
-    echo "Usage: ./autograde.sh 13518056 13518104"
+    echo "Usage: ./autograde.sh <nim> <openmpi_output_directory>"
     exit
 fi