documented -r --remove option for comedi_config

comedi_config/comedi_config.c

@@ -73,6 +73,8 @@ void do_help(int i)
 			"\t\tprint program version\n"
 		"\t-i --init-data <filename>\n"
 			"\t\tI don't know what this does\n"
+		"\t-r --remove\n"
+			"\t\tremove previously configured driver\n"
 		"\t--read-buffer <size>\n"
 			"\t\tset buffer size in kilobytes used for reads from the <device file>\n"
 		"\t--write-buffer <size>\n"

man/comedi_config.8

@@ -46,6 +46,8 @@ the file \fBdrivers.txt\fR.
 
 \fB-V, --version\fR	print version number and exit.
 
+\fB-r, --remove\fR	remove previously configured driver.
+
 .TP
 .BI "--read-buffer " "num"
 set read buffer size to