Fix pihole manpage to match code.

The dry-run argument to pihole -up is "--check-only", not "--checkonly".

Signed-off-by: Andreas Kurth <[email protected]>

Author: akurth

manpages/pihole.8

@@ -35,7 +35,7 @@ pihole -g\fR
 .br
 \fBpihole\fR \fB-l\fR (\fBon|off|off noflush\fR)
 .br
-\fBpihole -up \fR[--checkonly]
+\fBpihole -up \fR[--check-only]
 .br
 \fBpihole -v\fR [-p|-a|-f] [-c|-l|-hash]
 .br