Make sure all null and new-line characters are replaced by <br/>

bot/check-test.sh

@@ -78,7 +78,12 @@ else
     # Grep the entire output of ReFrame, so that we can report it in the foldable section of the test report
     GP_success_full='(?s)\[----------\] start processing checks.*?\[==========\] Finished on [a-zA-Z0-9 ]*'
     # tr '\0' '\n' places back the newline characters that the -z option of grep turned into null characters
-    grep_reframe_success_full=$(echo -e "$(grep -v "^>> searching for " ${job_dir}/${job_out} | grep -Pzo "${GP_success_full}" | tr '\0' '\n')\n")
+    grep_reframe_success_full=$( \
+        grep -v "^>> searching for " ${job_dir}/${job_out} | \
+        grep -Pzo "${GP_success_full}" | \
+        sed 's/\x00/<br\/>/g' | 
+        sed ':a;N;$!ba;s/\n/<br\/>/g' \
+    )
     grep_reframe_result=${grep_reframe_success_full}
     echo "grep_reframe_success_full: ${grep_reframe_success_full}"
 fi