Fix grep commands in init scripts.

The exit status of a pipeline is the exit status of the last command in
the pipeline.  If the last command is ":", the exit status will always
be 0, regardless of whether grep finds the specified pattern.

So just use grep's -q command.  According to the documentation for GNU
grep, some older grep implementations lacked this option.  But we're
only running these scripts on BusyBox grep, which unconditionally
includes this option.

3 files changed, 8 insertions, 8 deletions

diff --git a/src.etc/init.d/mdev b/src.etc/init.d/mdev
index 9a896f4..8052c3b 100755
--- a/src.etc/init.d/mdev
+++ b/src.etc/init.d/mdev
@@ -4,7 +4,7 @@ start()
 {
 	printf 'Enabling device hotplugging... '
 
-	if ! mount | grep -F ' /dev ' 2>&1 | :; then
+	if ! mount | grep -Fq ' /dev '; then
 		mount -t tmpfs -o noexec,nosuid,mode=0755 tmpfs /dev
 	fi
 
@@ -20,7 +20,7 @@ stop()
 
 	printf '\n' >/proc/sys/kernel/hotplug
 
-	if mount | grep -F ' /dev ' 2>&1 | :; then
+	if mount | grep -Fq ' /dev '; then
 		umount /dev
 	fi
 
diff --git a/src.etc/init.d/mountdevsubfs b/src.etc/init.d/mountdevsubfs
index 7e2fa87..5f44355 100755
--- a/src.etc/init.d/mountdevsubfs
+++ b/src.etc/init.d/mountdevsubfs
@@ -5,7 +5,7 @@ start()
 	printf 'Mounting device file systems... '
 
 	[ -d /dev/pts ] || mkdir -m 0755 /dev/pts
-	if ! mount | grep -F ' /dev/pts ' 2>&1 | :; then
+	if ! mount | grep -Fq ' /dev/pts '; then
 		mount -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts
 	fi
 
@@ -18,7 +18,7 @@ stop()
 {
 	printf 'Unmounting device file systems... '
 
-	if mount | grep -F ' /dev/pts ' 2>&1 | :; then
+	if mount | grep -Fq ' /dev/pts '; then
 		umount /dev/pts
 	fi
 
diff --git a/src.etc/init.d/mounttmpfs b/src.etc/init.d/mounttmpfs
index 902ad1d..96b398e 100755
--- a/src.etc/init.d/mounttmpfs
+++ b/src.etc/init.d/mounttmpfs
@@ -4,14 +4,14 @@ start()
 {
 	printf 'Mounting temporary file systems... '
 
-	if ! mount | grep -F ' /run ' 2>&1 | :; then
+	if ! mount | grep -Fq ' /run '; then
 		mount -t tmpfs -o nodev,noexec,nosuid,mode=0755 tmpfs /run
 	fi
 
 	[ -d /run/lock ] || mkdir -m 1777 /run/lock
 	[ -d /run/shm ] || mkdir -m 1777 /run/shm
 
-	if ! mount | grep -F ' /tmp ' 2>&1 | :; then
+	if ! mount | grep -Fq ' /tmp '; then
 		mount -t tmpfs -o nodev,nosuid,mode=1777 tmpfs /tmp
 	fi
 
@@ -22,11 +22,11 @@ stop()
 {
 	printf 'Unmounting temporary file systems... '
 
-	if mount | grep -F ' /run ' 2>&1 | :; then
+	if mount | grep -Fq ' /run '; then
 		umount /run
 	fi
 
-	if mount | grep -F ' /tmp ' 2>&1 | :; then
+	if mount | grep -Fq ' /tmp '; then
 		umount /run
 	fi