Fixes a bug in the calculation of the print_wrapped method

Fixes a bug that was causing the print_wrapped method to incorrectly
wrap the text and print beyond the edge of the terminal.

The reason for the bug is that the function assumed that the iteration
started with the first word but it actually started with the second word
and the first word was already in memo.

Author: sergio-bobillier

lib/thor/shell/basic.rb

@@ -230,8 +230,9 @@ def print_wrapped(message, options = {})
         paras = message.split("\n\n")
 
         paras.map! do |unwrapped|
-          counter = 0
-          unwrapped.split(" ").inject do |memo, word|
+          words = unwrapped.split(" ")
+          counter = words.first.length
+          words.inject do |memo, word|
             word = word.gsub(/\n\005/, "\n").gsub(/\005/, "\n")
             counter = 0 if word.include? "\n"
             if (counter + word.length + 1) < width

spec/shell/basic_spec.rb

@@ -175,6 +175,46 @@ def shell
     end
   end
 
+  describe "#print_wrapped" do
+    let(:message) do
+      "Creates a back-up of the given folder by compressing it in a .tar.gz\n"\
+      "file and then uploading it to the configured Amazon S3 Bucket.\n\n"\
+      "It does not verify the integrity of the generated back-up."
+    end
+
+    before do
+      allow(ENV).to receive(:[]).with("THOR_COLUMNS").and_return(80)
+    end
+
+    context "without indentation" do
+      subject(:wrap_text) { described_class.new.print_wrapped(message) }
+
+      let(:expected_output) do
+        "Creates a back-up of the given folder by compressing it in a .tar.gz file and\n"\
+        "then uploading it to the configured Amazon S3 Bucket.\n\n"\
+        "It does not verify the integrity of the generated back-up.\n"
+      end
+
+      it "properly wraps the text around the 80th column" do
+        expect { wrap_text }.to output(expected_output).to_stdout
+      end
+    end
+
+    context "with indentation" do
+      subject(:wrap_text) { described_class.new.print_wrapped(message, :indent => 4) }
+
+      let(:expected_output) do
+        "    Creates a back-up of the given folder by compressing it in a .tar.gz file\n"\
+        "    and then uploading it to the configured Amazon S3 Bucket.\n\n"\
+        "    It does not verify the integrity of the generated back-up.\n"
+      end
+
+      it "properly wraps the text around the 80th column" do
+        expect { wrap_text }.to output(expected_output).to_stdout
+      end
+    end
+  end
+
   describe "#say_status" do
     it "prints a message to the user with status" do
       expect($stdout).to receive(:print).with("      create  ~/.thor/command.thor\n")