Correct typo in ---fields option description (3 "-"

should be 2).

doc/man/man1/sacct.1

@@ -108,7 +108,7 @@ log file, with ".expired" appended to the file name. For example, if
 the accounting log file is /var/log/slurmacct.log, the expired log
 file will be /var/log/slurmacct.log.expired.
 .TP 
-\f3\-F \fP\f2field_list\fP \f3,\fP  \f3---fields\fP\f3=\fP\f2field_list\fP
+\f3\-F \fP\f2field_list\fP \f3,\fP  \f3--fields\fP\f3=\fP\f2field_list\fP
 Displays the job accounting data specified by the 
 \f2field_list\fP 
 operand, which is a comma-separated list of fields.