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/ejabberd/S50ejabberd

@@ -19,7 +19,7 @@ mkrundir() {
 case "$1" in
     start)
         mkrundir || exit 1
-        echo -n "Starting ejabberd... "
+        printf "Starting ejabberd... "
         "$CTL" start
         # Wait until ejabberd is up and running.
         if "$CTL" started; then
@@ -29,7 +29,7 @@ case "$1" in
         fi
         ;;
     stop)
-        echo -n "Stopping ejabberd... "
+        printf "Stopping ejabberd... "
         "$CTL" stop > /dev/null
         if [ $? -eq 3 ] || "$CTL" stopped; then
             echo "OK"