Merge pull request #15 from Tmonster/fix_fuzzer_script

Fuzzer script needs better error message/issue creation message

scripts/run_fuzzer.py

@@ -196,7 +196,16 @@ def run_shell_command(cmd):
 # reduce_multi_statement checks just the last statement first as a heuristic to see if
 # only the last statement causes the error.
 required_queries = reduce_sql.reduce_multi_statement(all_queries, shell, load_script)
-cmd = load_script + '\n' + last_query + "\n"
+cmd = load_script + '\n' + '\n'.join(required_queries)
+
+# get a new error message.
+(stdout, stderr, returncode) = run_shell_command(cmd)
+error_msg = reduce_sql.sanitize_error(stderr)
+
+print(f"the sql `{cmd}` causes the below error.")
+print(f"================MARKER====================")
+
+print(f"{error_msg}")
 
 if not dry:
     fuzzer_helper.file_issue(cmd, error_msg, fuzzer_name, seed, git_hash)