-\fB-c \fI<cols>\fR
-impose the number of columns, -1 means no limit (it
-is by default no limits if the stdout is not a tty and the tty width
-otherwise)
+\fB-c \fI<cols>\fR, \fB--nb-columns \fI<cols>\fR
+force the number of columns, -1 means no limit (it is by default no
+limits if the stdout is not a tty and the tty width otherwise)