+.B \-l
+Check the file for trailing blank lines, i.e., lines containing only
+horizontal whitespace. With
+.BR \-v ,
+report if the file has trailing blank lines; without
+.BR \-c ,
+remove these trailing blank lines from the output.
+.TP
+.BR \-v
+Report detailed messages about whitespace problems encountered. Useful
+with
+.BR \-c ,
+for example.
+.TP