nr_files conflict with filename

If nr_files is larger than the given number of files, it has
to be lowered. Assume that if the user gives a set of filenames
that this is the number he wants, otherwise he should use not
use a filename setting.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/HOWTO b/HOWTO
index 5df2607..24beeb8 100644
--- a/HOWTO
+++ b/HOWTO
@@ -205,7 +205,7 @@
 		files between threads in a job or several jobs, specify
 		a filename for each of them to override the default. If
 		the ioengine used is 'net', the filename is the host and
-		port to connect to in the format of =host:port. If the
+		port to connect to in the format of =host/port. If the
 		ioengine is file based, you can specify a number of files
 		by seperating the names with a ':' colon. So if you wanted
 		a job to open /dev/sda and /dev/sdb as the two working files,
@@ -306,7 +306,7 @@
 
 			net	Transfer over the network to given host:port.
 				'filename' must be set appropriately to
-				filename=host:port regardless of send
+				filename=host/port regardless of send
 				or receive, if the latter only the port
 				argument is used.