Adding Ruby 2.1.2 to Travis

Updating index opts tests to use a Fixnum instead of the 1e4 syntax (Float), no longer supported by Git
git/git@e3fa568c

.travis.yml

@@ -4,7 +4,8 @@ rvm:
   - 1.9.2
   - 1.9.3
   - 2.0.0
-  - 2.1
+  - 2.1.1
+  - 2.1.2
   - jruby-18mode
   - jruby-19mode
   - ree

lib/git/lib.rb

@@ -739,31 +739,29 @@ def command(cmd, opts = [], chdir = true, redirect = '', &block)
       ENV['GIT_INDEX_FILE'] = @git_index_file
 
       path = @git_work_dir || @git_dir || @path
-
+      
       opts = [opts].flatten.map {|s| escape(s) }.join(' ')
 
       git_cmd = "git #{cmd} #{opts} #{redirect} 2>&1"
 
-      out = nil
+      output = nil
+
       if chdir && (Dir.getwd != path)
-        Dir.chdir(path) { out = run_command(git_cmd, &block) } 
+        Dir.chdir(path) { output = run_command(git_cmd, &block) } 
       else
-
-        out = run_command(git_cmd, &block)
+        output = run_command(git_cmd, &block)
       end
 
       if @logger
         @logger.info(git_cmd)
-        @logger.debug(out)
+        @logger.debug(output)
       end
 
-      if $?.exitstatus > 0
-        if $?.exitstatus == 1 && out == ''
-          return ''
-        end
-        raise Git::GitExecuteError.new(git_cmd + ':' + out.to_s) 
+      if $?.exitstatus > 1 || ($?.exitstatus == 1 && output != '')
+        raise Git::GitExecuteError.new(git_cmd + ':' + output.to_s) 
       end
-      out
+
+      return output
     end
 
     # Takes the diff command line output (as Array) and parse it into a Hash
@@ -821,11 +819,9 @@ def log_path_options(opts)
     end
 
     def run_command(git_cmd, &block)
-      if block_given?
-        IO.popen(git_cmd, &block)
-      else
-        `#{git_cmd}`.chomp
-      end
+      return IO.popen(git_cmd, &block) if block_given?
+
+      `#{git_cmd}`.chomp
     end
 
     def escape(s)

tests/units/test_index_ops.rb

@@ -94,9 +94,9 @@ def test_revert
         g.commit("second-commit")
         g.gcommit('HEAD')
 
-        commits = g.log(1e4).count
+        commits = g.log(10000).count
         g.revert(first_commit.sha)
-        assert_equal(commits + 1, g.log(1e4).count)
+        assert_equal(commits + 1, g.log(10000).count)
         assert(!File.exist?('test-file2'))
       end
     end