Log spinner via Logging instead of directly.

That way it can be disabled during the specs; currently the spinner
prints during the specs.

It's usually invisible because the spinner prints backspaces over
itself, but when the output device doesn't backspace (like an editor's
console), they show up.

lib/babushka/helpers/log_helpers.rb

@@ -191,6 +191,10 @@ def self.log_table headings, rows
 
     private
 
+    def self.print message
+      print_log(message, true, :stdout)
+    end
+
     def self.print_log message, printable, as
       # This is disabled in the specs.
       print_log!(message, printable, as)

lib/babushka/shell.rb

@@ -43,7 +43,7 @@ def ok?
     def run &block
       @stdout, @stderr = '', ''
       @result = invoke
-      print "#{" " * (@progress.length + 1)}#{"\b" * (@progress.length + 1)}" unless @progress.nil?
+      Logging.print "#{" " * (@progress.length + 1)}#{"\b" * (@progress.length + 1)}" unless @progress.nil?
 
       if block_given?
         yield(self)
@@ -101,9 +101,9 @@ def read_from io, buf, log_as = nil
         buf << output
 
         if @should_spin
-          print " #{%w[| / - \\][@spinner_offset = ((@spinner_offset + 1) % 4)]}\b\b"
+          Logging.print " #{%w[| / - \\][@spinner_offset = ((@spinner_offset + 1) % 4)]}\b\b"
         elsif opts[:progress] && (@progress = output[opts[:progress]])
-          print " #{@progress}#{"\b" * (@progress.length + 1)}"
+          Logging.print " #{@progress}#{"\b" * (@progress.length + 1)}"
         end
       end
     end