Use avahi-browse at option

src/freedombone

   echo '#!/bin/bash' > $babel_script
   echo '' >> $babel_script
   echo 'if [[ $1 == "ls" || $1 == "list" ]]; then' >> $babel_script
-  echo '    avahi-browse --all' >> $babel_script
+  echo '    avahi-browse -at' >> $babel_script
   echo '    exit 0' >> $babel_script
   echo 'fi' >> $babel_script
   echo '' >> $babel_script
   echo '        start' >> $batman_script
   echo '        ;;' >> $batman_script
   echo '    ls|list)' >> $batman_script
-  echo '        avahi-browse --all' >> $batman_script
+  echo '        avahi-browse -at' >> $batman_script
   echo '        ;;' >> $batman_script
   echo '    *)' >> $batman_script
   echo '    echo "error: invalid parameter $1"' >> $batman_script

src/freedombone-client

   echo '#!/bin/bash' > $babel_script
   echo '' >> $babel_script
   echo 'if [[ $1 == "ls" || $1 == "list" ]]; then' >> $babel_script
-  echo '    avahi-browse --all' >> $babel_script
+  echo '    avahi-browse -at' >> $babel_script
   echo '    exit 0' >> $babel_script
   echo 'fi' >> $babel_script
   echo '' >> $babel_script
   echo '        batctl o' >> $batman_script
   echo '        ;;' >> $batman_script
   echo '    ls|list)' >> $batman_script
-  echo '        avahi-browse --all' >> $batman_script
+  echo '        avahi-browse -at' >> $batman_script
   echo '        ;;' >> $batman_script
   echo '    *)' >> $batman_script
   echo '    echo "error: invalid parameter $1"' >> $batman_script