Fix English in description of GCC_PLUGIN_STRUCTLEAK

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: c61f13eaa1ee ("gcc-plugins: Add structleak for more stack initialization")
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
diff --git a/arch/Kconfig b/arch/Kconfig
index 6c00e5b..e0dced4 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -425,7 +425,7 @@
 	bool "Force initialization of variables containing userspace addresses"
 	depends on GCC_PLUGINS
 	help
-	  This plugin zero-initializes any structures that containing a
+	  This plugin zero-initializes any structures containing a
 	  __user attribute. This can prevent some classes of information
 	  exposures.