Fix a whole bunch of Ruby 1.8.7 bugs

There are still 4 test failures:

* rspec ./spec/fpm/package/rpm_spec.rb:297 # FPM::Package::RPM#output package attributes should have the correct 'after_target_uninstall' trigger script
* rspec ./spec/fpm/package/rpm_spec.rb:288 # FPM::Package::RPM#output package attributes should have the correct 'before_uninstall' trigger script
* rspec ./spec/fpm/package/rpm_spec.rb:279 # FPM::Package::RPM#output package attributes should have the correct 'after_install' trigger script
* rspec ./spec/fpm/package/rpm_spec.rb:270 # FPM::Package::RPM#output package attributes should have the correct 'before_install' trigger script

spec/fpm/command_spec.rb

@@ -60,22 +60,22 @@
 
     context "when not given" do
       it "should not raise an exception" do
-        subject.parse([*args])
+        subject.parse(args)
       end
     end
     context "when given a valid log level" do
       it "should not raise an exception" do
-        subject.parse([*args, "--log", "error"])
-        subject.parse([*args, "--log", "warn"])
-        subject.parse([*args, "--log", "info"])
-        subject.parse([*args, "--log", "debug"])
+        subject.parse(args + ["--log", "error"])
+        subject.parse(args + ["--log", "warn"])
+        subject.parse(args + ["--log", "info"])
+        subject.parse(args + ["--log", "debug"])
       end
     end
     context "when given an invalid log level" do
       it "should raise an exception" do
-        insist { subject.parse([*args, "--log", ""]) }.raises FPM::Package::InvalidArgument
-        insist { subject.parse([*args, "--log", "whatever"]) }.raises FPM::Package::InvalidArgument
-        insist { subject.parse([*args, "--log", "fatal"]) }.raises FPM::Package::InvalidArgument
+        insist { subject.parse(args + ["--log", ""]) }.raises FPM::Package::InvalidArgument
+        insist { subject.parse(args + ["--log", "whatever"]) }.raises FPM::Package::InvalidArgument
+        insist { subject.parse(args + ["--log", "fatal"]) }.raises FPM::Package::InvalidArgument
       end
     end
   end