doc/openocd.texi: fix cross referencing

Commit b04c7c2ca587feebd6506716cd84297212350608 adds the cross
reference target "adapter_usb_location", but references it with
the command @xref inside a text, where command @ref should be
used. This triggers a compile warning:
	doc/openocd.texi:2517: warning: `.' or `,' must follow @xref, not c

Replace @xref with @ref and adapt both the text and the command
syntax.

Change-Id: I1520ffecb7d1d375f924492b1884d5b47f399007
Fixes: b04c7c2ca587 ("ftdi: use "adapter usb location" instead of
ftdi_location command")
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5045
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>

diff --git a/doc/openocd.texi b/doc/openocd.texi
index a5037b25433fe03a46947e921b2c81073e1d7f77..479bf34ecbad1b72d7c9afe21fe1ac19647ac316 100644 (file)
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -2514,7 +2514,7 @@ and are not restricted to containing only decimal digits.)
 
 @deffn {Config Command} {ftdi_location} <bus>-<port>[.<port>]...
 @emph{DEPRECATED -- avoid using this.
-Use the @xref{adapter_usb_location, adapter usb location} command instead.}
+Use the command @ref{adapter_usb_location,,adapter usb location} instead.}
 
 Specifies the physical USB port of the adapter to use. The path
 roots at @var{bus} and walks down the physical ports, with each