[PATCH 2/2] Documentation: PCI: extend subheading underline for "lspci output" section

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The underline syntax for "lspci output..." section is off-by-one less
than the section heading's length, hence triggers the warning:

Documentation/PCI/endpoint/pci-vntb-howto.rst:131: WARNING: Title underline too short.

Extend the underline by one to match the heading length.

Link: https://lore.kernel.org/linux-next/20220621200235.211b2e32@xxxxxxxxxxxxxxxx/
Fixes: 0c4b285d9636cc ("Documentation: PCI: Add specification for the PCI vNTB function device")
Reported-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Kishon Vijay Abraham I <kishon@xxxxxx>
Cc: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx>
Cc: "Krzysztof Wilczyński" <kw@xxxxxxxxx>
Cc: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Frank Li <Frank.Li@xxxxxxx>
Cc: Jon Mason <jdmason@xxxxxxxx>
Cc: linux-pci@xxxxxxxxxxxxxxx
Cc: linux-next@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx>
---
 Documentation/PCI/endpoint/pci-vntb-howto.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/PCI/endpoint/pci-vntb-howto.rst b/Documentation/PCI/endpoint/pci-vntb-howto.rst
index b4a679144692a8..31a0bae868f996 100644
--- a/Documentation/PCI/endpoint/pci-vntb-howto.rst
+++ b/Documentation/PCI/endpoint/pci-vntb-howto.rst
@@ -128,7 +128,7 @@ RootComplex Device
 ==================
 
 lspci Output at Host side
-------------------------
+-------------------------
 
 Note that the devices listed here correspond to the values populated in
 "Creating pci-epf-ntb Device" section above::
-- 
An old man doll... just what I always wanted! - Clara




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