package: Replace 'echo -n' by 'printf'

'echo -n' is not a POSIX construct (no flag support), we shoud use
'printf', especially in init script.

This patch was generated by the following command line:
git grep -l 'echo -n' -- `git ls-files | grep -v 'patch'` | xargs sed -i 's/echo -n/printf/'

Signed-off-by: Maxime Hadjinlian <maxime.hadjinlian@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/pulseaudio/S50pulseaudio

@@ -5,13 +5,13 @@
 
 
 start() {
-	echo -n "Starting pulseaudio: "
+	printf "Starting pulseaudio: "
 	umask 077
 	/usr/bin/pulseaudio --system --daemonize
 	echo "OK"
 }
 stop() {
-	echo -n "Stopping pulseaudio: "
+	printf "Stopping pulseaudio: "
 	pulseaudio --kill
 	echo "OK"
 }