[PATCH] kdumpctl: fix a variable expansion in check_fence_kdump_config()

[Pingfan Liu]

Both $ipaddrs and $node can hold multiple strings, so use "" to brace them.

Signed-off-by: Pingfan Liu 
---
 kdumpctl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kdumpctl b/kdumpctl
index 3f6a9be..2e7f842 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -944,7 +944,7 @@ check_fence_kdump_config()
    		return 1
    	fi
    	# node can be ipaddr
-		echo $ipaddrs | grep $node > /dev/null
+		echo "$ipaddrs " | grep "$node " > /dev/null
    	if [ $? -eq 0 ]; then
    		derror "Option fence_kdump_nodes cannot contain $node"
    		return 1