Fix typos in Documentation/: 'Q'-'R'

This patch fixes typos in various Documentation txts. The patch addresses
some words starting with the letters 'Q'-'R'.

Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 912e249..fd3c0c0 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -495,7 +495,7 @@
 
 	Note that if no primary address exists for the interface selected,
 	then the primary address of the first non-loopback interface that
-	has one will be used regarldess of this setting.
+	has one will be used regardless of this setting.
 
 	Default: 0