[f25 PATCH 3/4] kdumpctl: fix incorrect usage with pipe as input for grep -q

[Pingfan Liu]

For -q option, as man grep says:  Exit immediately with zero status if
any match is found, even if an error was detected.
So when matching, the read side of pipe is closed by "grep -q", while
the write side still try to write more data, which cause SIGPIPE to the
process, and the shell can not exit with 0.

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

diff --git a/kdumpctl b/kdumpctl
index 4d68be0..c755835 100755
--- a/kdumpctl
+++ b/kdumpctl
@@ -1126,7 +1126,7 @@ start()
    	return 1
    fi

-	if sestatus 2>/dev/null | grep -q "SELinux status.*enabled"; then
+	if [ $((sestatus | grep "SELinux status.*enabled") &> /dev/null) ]; then
    	selinux_relabel
    fi
    save_raw