PCI: Merge multi-line quoted strings

Merge quoted strings that are broken across lines into a single entity.
The compiler merges them anyway, but checkpatch complains about it, and
merging them makes it easier to grep for strings.

No functional change.

[bhelgaas: changelog, do the same for everything under drivers/pci]
Signed-off-by: Ryan Desfosses <ryan@desfo.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 27a7e67..5a68b48 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -980,8 +980,7 @@
 
 	/* Check whether driver already requested for MSI irq */
 	if (dev->msi_enabled) {
-		dev_info(&dev->dev, "can't enable MSI-X "
-		       "(MSI IRQ already assigned)\n");
+		dev_info(&dev->dev, "can't enable MSI-X (MSI IRQ already assigned)\n");
 		return -EINVAL;
 	}
 	status = msix_capability_init(dev, entries, nvec);