diff --git a/lib/packer.rb b/lib/packer.rb
index 458def9..c77fc93 100644
--- a/lib/packer.rb
+++ b/lib/packer.rb
@@ -55,10 +55,9 @@ class Packer
     first = "1#{sign}#{num_bits[-6..]}"
 
     num_bits = num_bits[0..-7]
-    bytes = []
-    num_bits.chars.groups_of(7).each do |seven_bits|
+    bytes = num_bits.chars.groups_of(7).map do |seven_bits|
       # mark all as extended
-      bytes << "1#{seven_bits.join.rjust(7, '0')}"
+      "1#{seven_bits.join.rjust(7, '0')}"
     end
     # least significant first
     bytes = bytes.reverse
diff --git a/lib/teeworlds_client.rb b/lib/teeworlds_client.rb
index fdadb47..074105d 100644
--- a/lib/teeworlds_client.rb
+++ b/lib/teeworlds_client.rb
@@ -451,7 +451,8 @@ class TeeworldsClient
           # in sequence
           @netbase.ack = (@netbase.ack + 1) % NET_MAX_SEQUENCE
         else
-          puts "warning: got chunk out of sequence! seq=#{chunk.seq} expected_seq=#{(@netbase.ack + 1) % NET_MAX_SEQUENCE}"
+          puts 'warning: got chunk out of sequence! ' \
+               "seq=#{chunk.seq} expected_seq=#{(@netbase.ack + 1) % NET_MAX_SEQUENCE}"
           if seq_in_backroom?(chunk.seq, @netbase.ack)
             puts '         dropping known chunk ...'
             next